EMERGENCY PLANNING AND NOTIFICATION

• Citation: 40 CFR Part 355
• Sections: 24

§ 355.1 What is the purpose of this part?

(a) This part (40 CFR part 355) establishes requirements for a facility to provide information necessary for developing and implementing State and local chemical emergency response plans, and requirements for emergency notification of chemical releases. This part also lists Extremely Hazardous Substances (EHSs) and Threshold Planning Quantities (TPQs) in Appendices A and B, which are used in determining if you are subject to these requirements.

(b) This part is written in a special format to make it easier to understand the regulatory requirements. Like other Environmental Protection Agency (EPA) regulations, this part establishes enforceable legal requirements. Information considered non-binding guidance under EPCRA is indicated in this regulation by the word “note” and a smaller typeface. Such notes are provided for information purposes only and are not considered legally binding under this part.

§ 355.2 Who do “you,” “I,” and “your” refer to in this part?

Throughout this part, “you,” “I,” and “your” refer to the owner or operator of a facility.

§ 355.3 Which section contains the definitions of the key words used in this part?

The definitions of key words used in this part are in § 355.61. It is important to read the definitions for these key words because the definition explains the word's specific meaning associated with the regulations in this part.

§ 355.10 Must my facility comply with the emergency planning requirements of this subpart?

You must comply with the emergency planning requirements in this subpart if your facility meets either of the following two conditions:

(a) Any extremely hazardous substance (EHS) is present at your facility in an amount equal to or greater than its threshold planning quantity (TPQ), or

(b) Your facility has been designated for emergency planning purposes, after public notice and opportunity for comment, by one of the following three entities:

(1) The State Emergency Response Commission (SERC).

(2) The Governor of the State in which your facility is located.

(3) The Chief Executive Officer of the Tribe for the Indian Tribe under whose jurisdiction your facility is located.

§ 355.11 To what substances do the emergency planning requirements of this subpart apply?

The emergency planning requirements of this subpart apply to any EHS listed in Appendices A and B of this part. Additionally, if a facility is designated for emergency planning purposes, as provided in § 355.10(b), substances that are not EHSs at this facility may become subject to the emergency planning requirements.

§ 355.12 What quantities of extremely hazardous substances trigger emergency planning requirements?

Any EHS present at your facility in an amount equal to or greater than its TPQ triggers the emergency planning requirements of this subpart. The TPQs are listed in Appendices A and B of this part in the column labeled “threshold planning quantity.”

§ 355.13 How do I calculate the quantity of an extremely hazardous substance present in mixtures?

If an EHS is present in a mixture in a particular container, determine the quantity (in pounds) of the EHS in that container by multiplying the concentration of the EHS (in weight percent) by the weight (in pounds) of the mixture in the container. If the concentration of an EHS is less than or equal to one percent in the mixture, you do not have to count that EHS. Here is an example calculation:

Example:

You have 150 pounds of a mixture that contains 20 weight percent of a certain EHS. The quantity of EHS present in the mixture is:

EHS (in pounds)

= (weight percent of EHS) × (weight of mixture)

= (20 percent) × (150 pound mixture)

= (0.20) × (150)

EHS (in pounds)

= 30 pounds

§ 355.14 Do I have to aggregate extremely hazardous substances to determine the total quantity present?

You must aggregate ( i.e. , add together) the amounts of each EHS at your facility to determine if a TPQ is present. This means that, for a particular EHS, you must determine the total amount present at any one time at your facility by adding together the quantity of pure EHS and the quantity contained in all mixtures, regardless of location, number of containers, or method of storage. You do not have to count an EHS in a mixture if the concentration of that EHS is less than or equal to one percent.

§ 355.15 Which threshold planning quantity do I use for an extremely hazardous substance present at my facility in solid form?

EHSs that are in solid form are subject to one of two different TPQs (for example, TPQs may be listed as 500/10,000 pounds), both of which are listed in Appendices A and B of this part. Here is how to determine which of the two listed TPQs you must use for an EHS present at your facility in solid form:

(a) Use the lower TPQ from Appendices A and B of this part if the solid:

(1) Is in powdered form and has a particle size less than 100 microns;

(2) Is in solution;

(3) Is in molten form; or

(4) Meets the criteria for a National Fire Protection Association (NFPA) rating of 2, 3 or 4 for reactivity.

Note to paragraph ( a ):

Use the instructions in § 355.16 to calculate the quantity present for the categories of solids listed in paragraphs (a)(1), (2) and (3) of this section.

(b) If the solid does not meet one of the criteria in paragraph (a) of this section, then the TPQ is 10,000 pounds.

§ 355.16 How do I determine the quantity of extremely hazardous substances present for certain forms of solids?

For the three forms of solids that are listed in § 355.15(a)(1) through (3), use these instructions to determine the quantity of extremely hazardous substance present:

(a) Solid in powdered form with a particle size less than 100 microns. Multiply the weight percent of solid with a particle size less than 100 microns in a particular container by the total weight of solid in the container.

(b) Solid in solution. Multiply the weight percent of the non-reactive solid in solution in a particular container by the total weight of solution in that container. Then multiply by 0.2.

Note to paragraph ( b ):

This reduction in quantity must not be used to determine the amount present at one-time at a facility for reporting under 40 CFR 370.10.

(c) Solid in molten form. Multiply the weight of the non-reactive solid in molten form by 0.3.

Note to paragraph ( c ):

This reduction in quantity must not be used to determine the amount present at one-time at a facility for reporting under 40 CFR 370.10.

§ 355.20 If this subpart applies to my facility, what information must I provide, who must I submit it to, and when is it due?

Use this table to determine the information you must provide, who to provide it to, and when:

What types of emergency planning notification are required?

What information must I provide?

To whom must I provide the information?

When must I provide the information?

(a) Emergency planning notification

You must provide notice that your facility is subject to the emergency planning requirements of this subpart

To the SERC and the LEPC

Within 60 days after your facility first becomes subject to the requirements of this subpart. If no LEPC exists for your facility at the time you are required to provide emergency planning notification, then you should report to the LEPC within 30 days after an LEPC is established for the emergency planning district in which your facility is located.

(b) Facility emergency coordinator

You must designate a facility representative who will participate in the local emergency planning process as a facility emergency response coordinator. You must provide notice of this facility representative

To the LEPC (or the SERC if there is no LEPC, or the Governor if there is no SERC)

Within 60 days after your facility first becomes subject to the requirements of this subpart. If no LEPC exists when you first report, then provide an additional report to the LEPC within 30 days after such LEPC is established for the emergency planning district in which your facility is located.

(c) Changes relevant to emergency planning

You must provide notice of any changes occurring at your facility that may be relevant to emergency planning

To the LEPC

Within 30 days after the changes have occurred.

(d) Requested information

You must provide any information necessary for developing or implementing the local emergency plan if the LEPC requests it

To the LEPC

Promptly. Note: The LEPC may specify a time frame for this information.

§ 355.21 In what format should the information be submitted?

EPA does not require any specific format. EPA recommends that you submit the information described in § 355.20 in writing in order to insure appropriate documentation. The SERC or LEPC may request that this information be submitted in a specific format.

§ 355.30 What facilities must comply with the emergency release notification requirements of this subpart?

You must comply with the emergency release notification requirements in this subpart if both of these two conditions are met:

(a) You produce, use, or store a hazardous chemical at your facility; and

(b) You release a reportable quantity (RQ) of any EHS or of a hazardous substance as defined by the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA Hazardous Substance) at your facility. Certain releases are exempted from these requirements. Exempted releases are listed in § 355.31.

Note to paragraph ( b ):

In addition to the emergency release notification requirements of this subpart, releases of CERCLA hazardous substances are subject to the notification requirements under CERCLA. This is explained further in subpart D of this part.

§ 355.31 What types of releases are exempt from the emergency release notification requirements of this subpart?

You do not have to provide emergency release notification under this subpart for any of the following six types of releases of EHSs or CERCLA hazardous substances that occur at your facility:

(a) Any release that results in exposure to persons solely within the boundaries of your facility.

(b) Any release that is a federally permitted release as defined in section 101(10) of CERCLA.

(c) Any release of a pesticide product that is exempt from reporting under section 103(e) of CERCLA.

(d) Any release that does not meet the definition of release under section 101(22) of CERCLA and is therefore exempt from CERCLA section 103(a) reporting.

(e) Any radionuclide release that occurs:

(1) Naturally in soil from land holdings such as parks, golf courses, or other large tracts of land.

(2) Naturally from land disturbance activities, including farming, construction, and land disturbance incidental to extraction during mining activities, except that which occurs at uranium, phosphate, tin, zircon, hafnium, vanadium, monazite, and rare earth mines. Land disturbance incidental to extraction includes: Land clearing; overburden removal and stockpiling; excavating, handling, transporting, and storing ores and other raw (not beneficiated or processed) materials; and replacing in mined-out areas coal ash, earthen materials from farming or construction, or overburden or other raw materials generated from the exempted mining activities.

(3) From the dumping and transportation of coal and coal ash (including fly ash, bottom ash, and boiler slags), including the dumping and land spreading operations that occur during coal ash uses.

(4) From piles of coal and coal ash, including fly ash, bottom ash, and boiler slags.

(f) Any release less than 1,000 pounds per 24 hours of nitrogen oxide or nitrogen dioxide to the air which is the result of combustion and combustion related activities.

(g) Air emissions from animal waste (including decomposing animal waste) at a farm.

§ 355.32 Which emergency release notification requirements apply to continuous releases?

If the release of an EHS or CERCLA hazardous substance is continuous and stable in quantity and rate at your facility as defined in 40 CFR 302.8(b), then the release qualifies for reduced reporting requirements under this subpart. Under these reduced reporting requirements, you do not need to provide the notifications required under § 355.40. However, in addition to the notifications required under 40 CFR 302.8, you must make all of the following notifications to the community emergency coordinator for the LEPC for any area likely to be affected by the release and to the SERC of any State likely to be affected by the release:

(a) Initial notifications as specified in 40 CFR 302.8 (d) and (e).

(b) Notification of a “statistically significant increase,” defined in 40 CFR 302.8(b) as any increase above the upper bound of the reported normal range.

(c) Notification of a “new release” as specified in 40 CFR 302.8(g)(1).

(d) Notification of a change in the normal range of the release as specified under 40 CFR 302.8(g)(2).

§ 355.33 What release quantities of EHSs and CERCLA hazardous substances trigger the emergency release notification requirements of this subpart?

The release of a reportable quantity (RQ) of an EHS or CERCLA hazardous substance within any 24-hour period triggers the emergency release notification requirements. RQs for EHSs are listed in Appendices A and B of this part in the column labeled “reportable quantity.” RQs for CERCLA hazardous substances are listed in Table 302.4 of 40 CFR 302.4 in the column labeled “final RQ.”

§ 355.40 What information must I provide?

You must make two separate notifications to comply with the emergency release notification requirements of this subpart: an immediate notification, and as soon as practicable thereafter a written follow-up emergency notification (or notifications, as more information becomes available).

(a) Immediate notification. The notice required under this section shall include as much of the following information known at the time. However, the retrieval of this information should not cause a delay in the notification on the emergency response.

(1) The chemical name or identity of any substance involved in the release.

(2) Indicate whether the substance is an EHS.

(3) Provide an estimate of the quantity of any such substance that was released into the environment.

(4) State the time and duration of the release.

(5) The medium or media into which the release occurred.

(6) Any known or anticipated acute or chronic health risks associated with the emergency and, where appropriate, advice regarding medical attention necessary for exposed individuals.

(7) Proper precautions to take as a result of the release, including evacuation (unless such information is readily available to the community emergency coordinator pursuant to the emergency plan).

(8) The name and telephone number of the individual (or individuals) to be contacted for further information.

(b) Written follow-up emergency notification. Except for releases that occur during transportation or from storage incident to transportation, you must provide a written follow-up emergency notice (or notices, as more information becomes available), as soon as practicable after the release. In the written follow-up emergency notice, you must provide and update the information required in the immediate notification and include additional information with respect to all of the following:

(1) Actions taken to respond and contain the release.

(2) Any known or anticipated acute or chronic health risks associated with the release.

(3) Where appropriate, advice regarding medical attention necessary for exposed individuals.

(c) You are not required to submit a written follow-up notification for a release that occurred during transportation or from storage incident to transportation. See § 355.42(b) for requirements for reporting such releases.

§ 355.41 In what format should the information be submitted?

The immediate notification, described in § 355.40(a), should be oral. The follow-up emergency notification, described in § 355.40(b), shall be in writing. EPA does not specify a particular format for the written follow-up emergency notification.

Note 1 to § 355.41:

The SERC and LEPC may request a specific format for this information.

§ 355.42 To whom must I submit the information?

(a) You must provide the immediate emergency release notification information and the written follow-up notification to:

(1) The community emergency coordinator for the LEPC of any area likely to be affected by the release (if there is no LEPC, notify the relevant local emergency response personnel); and

(2) The SERC of any State likely to be affected by the release.

(b) For a release that occurs during transportation or from storage incident to transportation, you may meet the requirements of this subpart by notifying the 911 operator (or in the absence of a 911 emergency telephone number, the operator) of the immediate notification information listed in § 355.40(a). You are not required under this subpart to submit a written follow-up notification, as described in § 355.40(b), for such a release.

§ 355.43 When must I submit the information?

(a) You must provide the required emergency release notification information described under § 355.40(a), immediately.

(b) You must provide the written follow-up emergency notice (or notices, as more information becomes available) described under § 355.40(b), as soon as practicable after the release.

§ 355.60 What is the relationship between the emergency release notification requirements of this part and the release notification requirements of CERCLA?

The emergency release notification requirements of this part are in addition to the release notification requirements of CERCLA. If you have a release of a CERCLA hazardous substance, you must comply with the emergency release notification requirements of this part and the release notification requirements of CERCLA section 103, codified at 40 CFR part 302. Use this table to determine which emergency release notification requirements apply to your release:

If a reportable quantity of a substance is released within a 24-hour period at your facility

And if the release is reportable under EPCRA Section 304, you must

And if the release is reportable under CERCLA Section 103, you must

(a) And the substance is on BOTH the list of EHSs (Appendices A and B of this part) AND the list of CERCLA Hazardous Substances (40 CFR 302.4)

Notify the LEPC and the SERC in accordance with §§ 355.40 through 355.43 of this part (except for a release during transportation or from storage incident to transportation; see § 355.42(b))

Comply with the release notification requirements of CERCLA section 103 and its implementing regulations (40 CFR part 302). Call the NRC at 800-424-8802.

(b) And the substance is on the list of CERCLA Hazardous Substances (40 CFR 302.4) and not on the list of EHSs (Appendices A and B of this part)

Notify the LEPC and the SERC, in accordance with §§ 355.40 through 355.43 of this part (except for a release during transportation or from storage incident to transportation; see in § 355.42(b))

Comply with the release notification requirements of CERCLA section 103 and its implementing regulations (40 CFR part 302). Call the NRC at 800-424-8802.

(c) And the substance is on the list of EHSs (Appendices A and B of this part) and not the list of CERCLA Hazardous Substances (40 CFR 302.4)

Notify the LEPC and the SERC in accordance with §§ 355.40 through 355.43 of this part (except for a release during transportation or from storage incident to transportation; see § 355.42(b))

Note: This table only applies to reportable releases, not to exempt releases.

§ 355.61 How are key words in this part defined?

Animal waste means feces, urine, or other excrement, digestive emission, urea, or similar substances emitted by animals (including any form of livestock, poultry, or fish). This term includes animal waste that is mixed or commingled with bedding, compost, feed, soil, or any other material typically found with such waste.

CERCLA means the Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended.

CERCLA hazardous substance means a substance defined in section 101(14) of CERCLA and listed in Table 302.4 of 40 CFR 302.4.

Chief Executive Officer of the Tribe means the person who is recognized by the Bureau of Indian Affairs as the chief elected administrative officer of the Tribe.

Environment includes water, air, and land and the interrelationship that exists among and between water, air, and land and all living things.

EPCRA means the Emergency Planning and Community Right-To-Know Act of 1986.

Extremely hazardous substance (EHS) means a substance listed in Appendices A and B of this part.

Facility means all buildings, equipment, structures, and other stationary items that are located on a single site or on contiguous or adjacent sites and that are owned or operated by the same person (or by any person that controls, is controlled by, or under common control with, such person). Facility includes manmade structures, as well as all natural structures in which chemicals are purposefully placed or removed through human means such that it functions as a containment structure for human use. For purposes of emergency release notification, the term includes motor vehicles, rolling stock, and aircraft.

Farm means a site or area (including associated structures) that—

(1) Is used for—

(i) The production of a crop; or

(ii) The raising or selling of animals (including any form of livestock, poultry, or fish); and

(2) Under normal conditions, produces during a farm year any agricultural products with a total value equal to not less than $1,000.

Hazardous chemical means any hazardous chemical as defined under 29 CFR 1910.1200(c), except that this term does not include:

(1) Any food, food additive, color additive, drug, or cosmetic regulated by the Food and Drug Administration.

(2) Any substance present as a solid in any manufactured item to the extent exposure to the substance does not occur under normal conditions of use.

(3) Any substance to the extent it is used:

(i) For personal, family, or household purposes, or is present in the same form and concentration as a product packaged for distribution and use by the general public. Present in the same form and concentration as a product packaged for distribution and use by the general public means a substance packaged in a similar manner and present in the same concentration as the substance when packaged for use by the general public, whether or not it is intended for distribution to the general public or used for the same purpose as when it is packaged for use by the general public;

(ii) In a research laboratory or hospital or other medical facility under the direct supervision of a technically qualified individual; or

(iii) In routine agricultural operations or is a fertilizer held for sale by a retailer to the ultimate customer.

Indian Country means Indian country defined in 18 U.S.C. 1151 as:

(1) All land within the limits of any Indian reservation under the jurisdiction of the United States government, notwithstanding the issuance of any patent, and, including rights-of-way running through the reservation;

(2) All dependent Indian communities within the borders of the United States whether within the original or subsequently acquired territory thereof, and whether within or without the limits of a State; and

(3) All Indian allotments, the Indian titles to which have not been extinguished, including rights-of-way running through the same.

Indian Tribe or Tribe means those Tribes federally recognized by the Secretary of the Interior.

LEPC means the Local Emergency Planning Committee appointed by the State Emergency Response Commission.

Medium or media means the environment ( i.e. , air, water, land).

Mixture means, for the purposes of 40 CFR part 355, a heterogeneous association of substances where the various individual substances retain their identities and can usually be separated by mechanical means. This definition includes, for the purposes of 40 CFR part 355, solutions but does not include alloys or amalgams.

Non-reactive solid means any substance listed in Appendix A or B of this part with two threshold planning quantity values, the higher TPQ being 10,000 pounds.

Person means any individual, trust, firm, joint stock company, corporation (including a government corporation), partnership, association, State, municipality, commission, political subdivision of a State, or interstate body.

Reactive solid means any extremely hazardous substance denoted with “a” in the “Notes” column in Appendix A or B of this part.

Release means any spilling, leaking, pumping, pouring, emitting, emptying, discharging, injecting, escaping, leaching, dumping, or disposing into the environment (including the abandonment or discarding of barrels, containers, and other closed receptacles) of any hazardous chemical, EHS, or CERCLA hazardous substance.

Reportable quantity means, for any CERCLA hazardous substance, the quantity established in Table 302.4 of 40 CFR 302.4, for such substance. For any EHS, reportable quantity means the quantity established in Appendices A and B of this part for such substance. Unless and until superseded by regulations establishing a reportable quantity for newly listed EHSs or CERCLA hazardous substances, a weight of 1 pound shall be the reportable quantity.

SERC means the State Emergency Response Commission for the State in which the facility is located except where the facility is located in Indian Country, in which case, SERC means the Emergency Response Commission for the Tribe under whose jurisdiction the facility is located. In the absence of a SERC for a State or Indian Tribe, the Governor or the chief executive officer of the tribe, respectively, shall be the SERC. Where there is a cooperative agreement between a State and a Tribe, the SERC shall be the entity identified in the agreement.

Solution means any aqueous or organic solutions, slurries, viscous solutions, suspensions, emulsions, or pastes.

State means any State of the United States, the District of Columbia, the Commonwealth of Puerto Rico, Guam, American Samoa, the United States Virgin Islands, the Northern Mariana Islands, any other territory or possession over which the United States has jurisdiction and Indian Country.

Threshold planning quantity means, for a substance listed in Appendices A and B of this part, the quantity listed in the column “threshold planning quantity” for that substance.

Appendix A Appendix A to Part 355—The List of Extremely Hazardous Substances and Their Threshold Planning Quantities

[Alphabetical Order]

CAS No.

Chemical name

Notes

Reportable quantity * (pounds)

Threshold planning quantity (pounds)

75-86-5

Acetone Cyanohydrin

10

1,000

1752-30-3

Acetone Thiosemicarbazide

1,000

1,000/10,000

107-02-8

Acrolein

1

500

79-06-1

Acrylamide

f

5,000

1,000/10,000

107-13-1

Acrylonitrile

f

100

10,000

814-68-6

Acrylyl Chloride

d

100

100

111-69-3

Adiponitrile

f

1,000

1,000

116-06-3

Aldicarb

b

1

100/10,000

309-00-2

Aldrin

1

500/10,000

107-18-6

Allyl Alcohol

100

1,000

107-11-9

Allylamine

500

500

20859-73-8

Aluminum Phosphide

a

100

500

54-62-6

Aminopterin

500

500/10,000

78-53-5

Amiton

500

500

3734-97-2

Amiton Oxalate

100

100/10,000

7664-41-7

Ammonia

f

100

500

300-62-9

Amphetamine

1,000

1,000

62-53-3

Aniline

f

5,000

1,000

88-05-1

Aniline, 2,4,6-Trimethyl-

500

500

7783-70-2

Antimony Pentafluoride

500

500

1397-94-0

Antimycin A

b

1,000

1,000/10,000

86-88-4

ANTU

100

500/10,000

1303-28-2

Arsenic Pentoxide

1

100/10,000

1327-53-3

Arsenous Oxide

d

1

100/10,000

7784-34-1

Arsenous Trichloride

1

500

7784-42-1

Arsine

100

100

2642-71-9

Azinphos-Ethyl

100

100/10,000

86-50-0

Azinphos-Methyl

1

10/10,000

98-87-3

Benzal Chloride

5,000

500

98-16-8

Benzenamine, 3-(Trifluoromethyl)-

500

500

100-14-1

Benzene, 1-(Chloromethyl)-4-Nitro-

500

500/10,000

98-05-5

Benzenearsonic Acid

10

10/10,000

3615-21-2

Benzimidazole, 4,5-Dichloro-2-(Trifluoromethyl)-

c

500

500/10,000

98-07-7

Benzotrichloride

10

100

100-44-7

Benzyl Chloride

100

500

140-29-4

Benzyl Cyanide

d

500

500

15271-41-7

Bicyclo[2.2.1]Heptane-2-Carbonitrile, 5-Chloro-6-((((Methylamino)Carbonyl)Oxy)Imino)-, (1s-(1-alpha,2-beta,4-alpha,5-alpha,6E))-

500

500/10,000

534-07-6

Bis(Chloromethyl) Ketone

10

10/10,000

4044-65-9

Bitoscanate

500

500/10,000

10294-34-5

Boron Trichloride

500

500

7637-07-2

Boron Trifluoride

500

500

353-42-4

Boron Trifluoride Compound With Methyl Ether (1:1)

1,000

1,000

28772-56-7

Bromadiolone

100

100/10,000

7726-95-6

Bromine

f

500

500

1306-19-0

Cadmium Oxide

100

100/10,000

2223-93-0

Cadmium Stearate

b

1,000

1,000/10,000

7778-44-1

Calcium Arsenate

1

500/10,000

8001-35-2

Camphechlor

1

500/10,000

56-25-7

Cantharidin

100

100/10,000

51-83-2

Carbachol Chloride

500

500/10,000

26419-73-8

Carbamic Acid, Methyl-, O-(((2,4-Dimethyl-1, 3-Dithiolan-2-yl)Methylene)Amino)-

100

100/10,000

1563-66-2

Carbofuran

10

10/10,000

75-15-0

Carbon Disulfide

f

100

10,000

786-19-6

Carbophenothion

500

500

57-74-9

Chlordane

1

1,000

470-90-6

Chlorfenvinfos

500

500

7782-50-5

Chlorine

10

100

24934-91-6

Chlormephos

500

500

999-81-5

Chlormequat Chloride

d

100

100/10,000

79-11-8

Chloroacetic Acid

100

100/10,000

107-07-3

Chloroethanol

500

500

627-11-2

Chloroethyl Chloroformate

1,000

1,000

67-66-3

Chloroform

f

10

10,000

542-88-1

Chloromethyl Ether

d

10

100

107-30-2

Chloromethyl Methyl Ether

b

10

100

3691-35-8

Chlorophacinone

100

100/10,000

1982-47-4

Chloroxuron

500

500/10,000

21923-23-9

Chlorthiophos

d

500

500

10025-73-7

Chromic Chloride

1

1/10,000

62207-76-5

Cobalt, ((2,2′-(1,2-Ethanediylbis (Nitrilomethylidyne)) Bis(6-Fluorophenolato))(2-)-N,N′,O,O′)-

100

100/10,000

10210-68-1

Cobalt Carbonyl

d

10

10/10,000

64-86-8

Colchicine

d

10

10/10,000

56-72-4

Coumaphos

10

100/10,000

5836-29-3

Coumatetralyl

500

500/10,000

95-48-7

Cresol, o-

100

1,000/10,000

535-89-7

Crimidine

100

100/10,000

4170-30-3

Crotonaldehyde

100

1,000

123-73-9

Crotonaldehyde, (E)-

100

1,000

506-68-3

Cyanogen Bromide

1,000

500/10,000

506-78-5

Cyanogen Iodide

1,000

1,000/10,000

2636-26-2

Cyanophos

1,000

1,000

675-14-9

Cyanuric Fluoride

100

100

66-81-9

Cycloheximide

100

100/10,000

108-91-8

Cyclohexylamine

f

10,000

10,000

17702-41-9

Decaborane(14)

500

500/10,000

8065-48-3

Demeton

500

500

919-86-8

Demeton-S-Methyl

500

500

10311-84-9

Dialifor

100

100/10,000

19287-45-7

Diborane

100

100

111-44-4

Dichloroethyl ether

10

10,000

149-74-6

Dichloromethylphenylsilane

1,000

1,000

62-73-7

Dichlorvos

10

1,000

141-66-2

Dicrotophos

100

100

1464-53-5

Diepoxybutane

10

500

814-49-3

Diethyl Chlorophosphate

d

500

500

71-63-6

Digitoxin

b

100

100/10,000

2238-07-5

Diglycidyl Ether

1,000

1,000

20830-75-5

Digoxin

d

10

10/10,000

115-26-4

Dimefox

500

500

60-51-5

Dimethoate

10

500/10,000

2524-03-0

Dimethyl Phosphorochloridothioate

500

500

77-78-1

Dimethyl sulfate

100

500

75-78-5

Dimethyldichlorosilane

d

500

500

57-14-7

Dimethylhydrazine

10

1,000

99-98-9

Dimethyl-p-Phenylenediamine

10

10/10,000

644-64-4

Dimetilan

1

500/10,000

534-52-1

Dinitrocresol

10

10/10,000

88-85-7

Dinoseb

1,000

100/10,000

1420-07-1

Dinoterb

500

500/10,000

78-34-2

Dioxathion

500

500

82-66-6

Diphacinone

10

10/10,000

152-16-9

Diphosphoramide, Octamethyl-

100

100

298-04-4

Disulfoton

1

500

514-73-8

Dithiazanine Iodide

500

500/10,000

541-53-7

Dithiobiuret

100

100/10,000

316-42-7

Emetine, Dihydrochloride

d

1

1/10,000

115-29-7

Endosulfan

1

10/10,000

2778-04-3

Endothion

500

500/10,000

72-20-8

Endrin

1

500/10,000

106-89-8

Epichlorohydrin

f

100

1,000

2104-64-5

EPN

100

100/10,000

50-14-6

Ergocalciferol

b

1,000

1,000/10,000

379-79-3

Ergotamine Tartrate

500

500/10,000

1622-32-8

Ethanesulfonyl Chloride, 2-Chloro-

500

500

10140-87-1

Ethanol, 1,2-Dichloro-, Acetate

1,000

1,000

563-12-2

Ethion

10

1,000

13194-48-4

Ethoprophos

1,000

1,000

538-07-8

Ethylbis(2-Chloroethyl)Amine

d

500

500

371-62-0

Ethylene Fluorohydrin

b, d

10

10

75-21-8

Ethylene Oxide

f

10

1,000

107-15-3

Ethylenediamine

5,000

10,000

151-56-4

Ethyleneimine

1

500

542-90-5

Ethylthiocyanate

10,000

10,000

22224-92-6

Fenamiphos

10

10/10,000

115-90-2

Fensulfothion

d

500

500

4301-50-2

Fluenetil

100

100/10,000

7782-41-4

Fluorine

e

10

500

640-19-7

Fluoroacetamide

100

100/10,000

144-49-0

Fluoroacetic Acid

10

10/10,000

359-06-8

Fluoroacetyl Chloride

b

10

10

51-21-8

Fluorouracil

500

500/10,000

944-22-9

Fonofos

500

500

50-00-0

Formaldehyde

f

100

500

107-16-4

Formaldehyde Cyanohydrin

d

1,000

1,000

23422-53-9

Formetanate Hydrochloride

d

100

500/10,000

2540-82-1

Formothion

100

100

17702-57-7

Formparanate

100

100/10,000

21548-32-3

Fosthietan

500

500

3878-19-1

Fuberidazole

100

100/10,000

110-00-9

Furan

100

500

13450-90-3

Gallium Trichloride

500

500/10,000

77-47-4

Hexachlorocyclopentadiene

d

10

100

4835-11-4

Hexamethylenediamine, N,N′-Dibutyl-

500

500

302-01-2

Hydrazine

1

1,000

74-90-8

Hydrocyanic Acid

10

100

7647-01-0

Hydrogen Chloride (gas only)

f

5,000

500

7664-39-3

Hydrogen Fluoride

100

100

7722-84-1

Hydrogen Peroxide (Conc >52%)

f

1,000

1,000

7783-07-5

Hydrogen Selenide

10

10

7783-06-4

Hydrogen Sulfide

f

100

500

123-31-9

Hydroquinone

f

100

500/10,000

13463-40-6

Iron, Pentacarbonyl-

100

100

297-78-9

Isobenzan

100

100/10,000

78-82-0

Isobutyronitrile

d

1,000

1,000

102-36-3

Isocyanic Acid, 3,4-Dichlorophenyl Ester

500

500/10,000

465-73-6

Isodrin

1

100/10,000

55-91-4

Isofluorphate

b

100

100

4098-71-9

Isophorone Diisocyanate

g

500

500

108-23-6

Isopropyl Chloroformate

1,000

1,000

119-38-0

Isopropylmethyl-pyrazolyl Dimethylcarbamate

100

500

78-97-7

Lactonitrile

1,000

1,000

21609-90-5

Leptophos

500

500/10,000

541-25-3

Lewisite

b, d

10

10

58-89-9

Lindane

1

1,000/10,000

7580-67-8

Lithium Hydride

a

100

100

109-77-3

Malononitrile

1,000

500/10,000

12108-13-3

Manganese, Tricarbonyl Methylcyclopentadienyl

d

100

100

51-75-2

Mechlorethamine

b

10

10

950-10-7

Mephosfolan

500

500

1600-27-7

Mercuric Acetate

500

500/10,000

7487-94-7

Mercuric Chloride

500

500/10,000

21908-53-2

Mercuric Oxide

500

500/10,000

10476-95-6

Methacrolein Diacetate

1,000

1,000

760-93-0

Methacrylic Anhydride

500

500

126-98-7

Methacrylonitrile

d

1,000

500

920-46-7

Methacryloyl Chloride

100

100

30674-80-7

Methacryloyloxyethyl Isocyanate

d

100

100

10265-92-6

Methamidophos

100

100/10,000

558-25-8

Methanesulfonyl Fluoride

1,000

1,000

950-37-8

Methidathion

500

500/10,000

2032-65-7

Methiocarb

10

500/10,000

16752-77-5

Methomyl

d

100

500/10,000

151-38-2

Methoxyethylmercuric Acetate

500

500/10,000

80-63-7

Methyl 2-Chloroacrylate

500

500

74-83-9

Methyl Bromide

f

1,000

1,000

79-22-1

Methyl Chloroformate

d

1,000

500

60-34-4

Methyl Hydrazine

10

500

624-83-9

Methyl Isocyanate

10

500

556-61-6

Methyl Isothiocyanate

a

500

500

74-93-1

Methyl Mercaptan

f

100

500

3735-23-7

Methyl Phenkapton

500

500

676-97-1

Methyl Phosphonic Dichloride

a

100

100

556-64-9

Methyl Thiocyanate

10,000

10,000

78-94-4

Methyl Vinyl Ketone

10

10

502-39-6

Methylmercuric Dicyanamide

500

500/10,000

75-79-6

Methyltrichlorosilane

d

500

500

1129-41-5

Metolcarb

1,000

100/10,000

7786-34-7

Mevinphos

10

500

315-18-4

Mexacarbate

d

1,000

500/10,000

50-07-7

Mitomycin C

10

500/10,000

6923-22-4

Monocrotophos

10

10/10,000

2763-96-4

Muscimol

1,000

500/10,000

505-60-2

Mustard Gas

d

500

500

13463-39-3

Nickel Carbonyl

10

1

54-11-5

Nicotine

b

100

100

65-30-5

Nicotine Sulfate

100

100/10,000

7697-37-2

Nitric Acid

1,000

1,000

10102-43-9

Nitric Oxide

b

10

100

98-95-3

Nitrobenzene

f

1,000

10,000

1122-60-7

Nitrocyclohexane

500

500

10102-44-0

Nitrogen Dioxide

10

100

62-75-9

Nitrosodimethylamine

d

10

1,000

991-42-4

Norbormide

100

100/10,000

Organorhodium Complex (PMN-82-147)

10

10/10,000

630-60-4

Ouabain

b

100

100/10,000

23135-22-0

Oxamyl

100

100/10,000

78-71-7

Oxetane, 3,3-Bis(Chloromethyl)-

500

500

2497-07-6

Oxydisulfoton

d

500

500

10028-15-6

Ozone

100

100

1910-42-5

Paraquat Dichloride

10

10/10,000

2074-50-2

Paraquat Methosulfate

10

10/10,000

56-38-2

Parathion

b

10

100

298-00-0

Parathion-Methyl

b

100

100/10,000

12002-03-8

Paris Green

1

500/10,000

19624-22-7

Pentaborane

500

500

2570-26-5

Pentadecylamine

100

100/10,000

79-21-0

Peracetic Acid

500

500

594-42-3

Perchloromethylmercaptan

100

500

108-95-2

Phenol

1,000

500/10,000

4418-66-0

Phenol, 2,2′-Thiobis(4-Chloro-6-Methyl)-

100

100/10,000

64-00-6

Phenol, 3-(1-Methylethyl)-, Methylcarbamate

10

500/10,000

58-36-6

Phenoxarsine, 10,10′-Oxydi-

500

500/10,000

696-28-6

Phenyl Dichloroarsine

d

1

500

59-88-1

Phenylhydrazine Hydrochloride

1,000

1,000/10,000

62-38-4

Phenylmercury Acetate

100

500/10,000

2097-19-0

Phenylsilatrane

d

100

100/10,000

103-85-5

Phenylthiourea

100

100/10,000

298-02-2

Phorate

10

10

4104-14-7

Phosacetim

100

100/10,000

947-02-4

Phosfolan

100

100/10,000

75-44-5

Phosgene

f

10

10

13171-21-6

Phosphamidon

100

100

7803-51-2

Phosphine

100

500

2703-13-1

Phosphonothioic Acid, Methyl-, O-Ethyl O-(4-(Methylthio) Phenyl) Ester

500

500

50782-69-9

Phosphonothioic Acid, Methyl-, S-(2-(Bis(1Methylethyl)Amino)Ethyl) O-Ethyl Ester

100

100

2665-30-7

Phosphonothioic Acid, Methyl-, O-(4-Nitrophenyl) O-Phenyl Ester

500

500

3254-63-5

Phosphoric Acid, Dimethyl 4-(Methylthio)Phenyl Ester

500

500

2587-90-8

Phosphorothioic Acid, O,O-Dimethyl-S-(2-Methylthio) Ethyl Ester

b, c

500

500

7723-14-0

Phosphorus

a, d

1

100

10025-87-3

Phosphorus Oxychloride

1,000

500

10026-13-8

Phosphorus Pentachloride

a

500

500

7719-12-2

Phosphorus Trichloride

1,000

1,000

57-47-6

Physostigmine

100

100/10,000

57-64-7

Physostigmine, Salicylate (1:1)

100

100/10,000

124-87-8

Picrotoxin

500

500/10,000

110-89-4

Piperidine

1,000

1,000

23505-41-1

Pirimifos-Ethyl

1,000

1,000

10124-50-2

Potassium Arsenite

1

500/10,000

151-50-8

Potassium Cyanide

a

10

100

506-61-6

Potassium Silver Cyanide

a

1

500

2631-37-0

Promecarb

d

1,000

500/10,000

106-96-7

Propargyl Bromide

10

10

57-57-8

Propiolactone, Beta-

10

500

107-12-0

Propionitrile

10

500

542-76-7

Propionitrile, 3-Chloro-

1,000

1,000

70-69-9

Propiophenone, 4-Amino-

c

100

100/10,000

109-61-5

Propyl Chloroformate

500

500

75-56-9

Propylene Oxide

f

100

10,000

75-55-8

Propyleneimine

1

10,000

2275-18-5

Prothoate

100

100/10,000

129-00-0

Pyrene

b

5,000

1,000/10,000

140-76-1

Pyridine, 2-Methyl-5-Vinyl-

500

500

504-24-5

Pyridine, 4-Amino-

d

1,000

500/10,000

1124-33-0

Pyridine, 4-Nitro-,l-Oxide

500

500/10,000

53558-25-1

Pyriminil

d

100

100/10,000

14167-18-1

Salcomine

500

500/10,000

107-44-8

Sarin

d

10

10

7783-00-8

Selenious Acid

10

1,000/10,000

7791-23-3

Selenium Oxychloride

500

500

563-41-7

Semicarbazide Hydrochloride

1,000

1,000/10,000

3037-72-7

Silane, (4-Aminobutyl)Diethoxymethyl-

1,000

1,000

7631-89-2

Sodium Arsenate

1

1,000/10,000

7784-46-5

Sodium Arsenite

1

500/10,000

26628-22-8

Sodium Azide (Na(N 3 ))

a

1,000

500

124-65-2

Sodium Cacodylate

100

100/10,000

143-33-9

Sodium Cyanide (Na(CN))

a

10

100

62-74-8

Sodium Fluoroacetate

10

10/10,000

13410-01-0

Sodium Selenate

100

100/10,000

10102-18-8

Sodium Selenite

d

100

100/10,000

10102-20-2

Sodium Tellurite

500

500/10,000

900-95-8

Stannane, Acetoxytriphenyl-

c

500

500/10,000

57-24-9

Strychnine

b

10

100/10,000

60-41-3

Strychnine Sulfate

10

100/10,000

3689-24-5

Sulfotep

100

500

3569-57-1

Sulfoxide, 3-Chloropropyl Octyl

500

500

7446-09-5

Sulfur Dioxide

f

500

500

7783-60-0

Sulfur Tetrafluoride

100

100

7446-11-9

Sulfur Trioxide

a

100

100

7664-93-9

Sulfuric Acid

1,000

1,000

77-81-6

Tabun

b, d

10

10

7783-80-4

Tellurium Hexafluoride

e

100

100

107-49-3

TEPP

10

100

13071-79-9

Terbufos

d

100

100

78-00-2

Tetraethyllead

b

10

100

597-64-8

Tetraethyltin

b

100

100

75-74-1

Tetramethyllead

b, f

100

100

509-14-8

Tetranitromethane

10

500

10031-59-1

Thallium Sulfate

d

100

100/10,000

6533-73-9

Thallous Carbonate

b, d

100

100/10,000

7791-12-0

Thallous Chloride

b, d

100

100/10,000

2757-18-8

Thallous Malonate

b, d

100

100/10,000

7446-18-6

Thallous Sulfate

100

100/10,000

2231-57-4

Thiocarbazide

1,000

1,000/10,000

39196-18-4

Thiofanox

100

100/10,000

297-97-2

Thionazin

100

500

108-98-5

Thiophenol

100

500

79-19-6

Thiosemicarbazide

100

100/10,000

5344-82-1

Thiourea, (2-Chlorophenyl)-

100

100/10,000

614-78-8

Thiourea, (2-Methylphenyl)-

500

500/10,000

7550-45-0

Titanium Tetrachloride

1,000

100

584-84-9

Toluene 2,4-Diisocyanate

100

500

91-08-7

Toluene 2,6-Diisocyanate

100

100

110-57-6

Trans-1,4-Dichlorobutene

500

500

1031-47-6

Triamiphos

500

500/10,000

24017-47-8

Triazofos

500

500

76-02-8

Trichloroacetyl Chloride

500

500

115-21-9

Trichloroethylsilane

d

500

500

327-98-0

Trichloronate

e

500

500

98-13-5

Trichlorophenylsilane

d

500

500

1558-25-4

Trichloro(Chloromethyl)Silane

100

100

27137-85-5

Trichloro(Dichlorophenyl) Silane

500

500

998-30-1

Triethoxysilane

500

500

75-77-4

Trimethylchlorosilane

1,000

1,000

824-11-3

Trimethylolpropane Phosphite

d

100

100/10,000

1066-45-1

Trimethyltin Chloride

500

500/10,000

639-58-7

Triphenyltin Chloride

500

500/10,000

555-77-1

Tris(2-Chloroethyl)Amine

d

100

100

2001-95-8

Valinomycin

b

1,000

1,000/10,000

1314-62-1

Vanadium Pentoxide

1,000

100/10,000

108-05-4

Vinyl Acetate Monomer

f

5,000

1,000

81-81-2

Warfarin

100

500/10,000

129-06-6

Warfarin Sodium

d

100

100/10,000

28347-13-9

Xylylene Dichloride

100

100/10,000

58270-08-9

Zinc, Dichloro(4,4-Dimethyl-5((((Methylamino)Carbonyl) Oxy)Imino)Pentanenitrile)-, (T-4)-

100

100/10,000

1314-84-7

Zinc Phosphide

a

100

500

* Only the statutory or final RQ is shown. For more information, see 40 CFR 355.61.

Notes:

a. This material is a reactive solid. The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-solution form.

b. The calculated TPQ changed after technical review as described in a technical support document for the final rule, April 22, 1987.

c. Chemicals added by final rule, April 22, 1987.

d. Revised TPQ based on new or re-evaluated toxicity data, April 22, 1987.

e. The TPQ was revised due to calculation error, April 22, 1987.

f. Chemicals on the original list that do not meet toxicity criteria but because of their acute lethality, high production volume and known risk are considered chemicals of concern (“Other chemicals”), November 17, 1986 and February 15, 1990.

g. The TPQ was recalculated (September 8, 2003) since it was mistakenly calculated in the April 22, 1987 final rule under the wrong assumption that this chemical is a reactive solid, when in fact it is a liquid. RQ for this chemical was adjusted on September 11, 2006.

Appendix B Appendix B to Part 355—The List of Extremely Hazardous Substances and Their Threshold Planning Quantities

[CAS Number Order]

CAS No.

Chemical name

Notes

Reportable quantity * (pounds)

Threshold planning quantity (pounds)

0

Organorhodium Complex (PMN-82-147)

10

10/10,000

50-00-0

Formaldehyde

f

100

500

50-07-7

Mitomycin C

10

500/10,000

50-14-6

Ergocalciferol

b

1,000

1,000/10,000

51-21-8

Fluorouracil

500

500/10,000

51-75-2

Mechlorethamine

b

10

10

51-83-2

Carbachol Chloride

500

500/10,000

54-11-5

Nicotine

b

100

100

54-62-6

Aminopterin

500

500/10,000

55-91-4

Isofluorphate

b

100

100

56-25-7

Cantharidin

100

100/10,000

56-38-2

Parathion

b

10

100

56-72-4

Coumaphos

10

100/10,000

57-14-7

Dimethylhydrazine

10

1,000

57-24-9

Strychnine

b

10

100/10,000

57-47-6

Physostigmine

100

100/10,000

57-57-8

Propiolactone, Beta-

10

500

57-64-7

Physostigmine, Salicylate (1:1)

100

100/10,000

57-74-9

Chlordane

1

1,000

58-36-6

Phenoxarsine, 10,10′-Oxydi-

500

500/10,000

58-89-9

Lindane

1

1,000/10,000

59-88-1

Phenylhydrazine Hydrochloride

1,000

1,000/10,000

60-34-4

Methyl Hydrazine

10

500

60-41-3

Strychnine sulfate

10

100/10,000

60-51-5

Dimethoate

10

500/10,000

62-38-4

Phenylmercury Acetate

100

500/10,000

62-53-3

Aniline

f

5,000

1,000

62-73-7

Dichlorvos

10

1,000

62-74-8

Sodium Fluoroacetate

10

10/10,000

62-75-9

Nitrosodimethylamine

d

10

1,000

64-00-6

Phenol, 3-(1-Methylethyl)-, Methylcarbamate

10

500/10,000

64-86-8

Colchicine

d

10

10/10,000

65-30-5

Nicotine sulfate

100

100/10,000

66-81-9

Cycloheximide

100

100/10,000

67-66-3

Chloroform

f

10

10,000

70-69-9

Propiophenone, 4-Amino-

c

100

100/10,000

71-63-6

Digitoxin

b

100

100/10,000

72-20-8

Endrin

1

500/10,000

74-83-9

Methyl Bromide

f

1,000

1,000

74-90-8

Hydrocyanic Acid

10

100

74-93-1

Methyl Mercaptan

f

100

500

75-15-0

Carbon Disulfide

f

100

10,000

75-21-8

Ethylene Oxide

f

10

1,000

75-44-5

Phosgene

f

10

10

75-55-8

Propyleneimine

1

10,000

75-56-9

Propylene Oxide

f

100

10,000

75-74-1

Tetramethyllead

b, f

100

100

75-77-4

Trimethylchlorosilane

1,000

1,000

75-78-5

Dimethyldichlorosilane

d

500

500

75-79-6

Methyltrichlorosilane

d

500

500

75-86-5

Acetone Cyanohydrin

10

1,000

76-02-8

Trichloroacetyl Chloride

500

500

77-47-4

Hexachlorocyclopentadiene

d

10

100

77-78-1

Dimethyl Sulfate

100

500

77-81-6

Tabun

b, d

10

10

78-00-2

Tetraethyllead

b

10

100

78-34-2

Dioxathion

500

500

78-53-5

Amiton

500

500

78-71-7

Oxetane, 3,3-Bis(Chloromethyl)-

500

500

78-82-0

Isobutyronitrile

d

1,000

1,000

78-94-4

Methyl Vinyl Ketone

10

10

78-97-7

Lactonitrile

1,000

1,000

79-06-1

Acrylamide

f

5,000

1,000/10,000

79-11-8

Chloroacetic Acid

100

100/10,000

79-19-6

Thiosemicarbazide

100

100/10,000

79-21-0

Peracetic Acid

500

500

79-22-1

Methyl Chloroformate

d

1,000

500

80-63-7

Methyl 2-Chloroacrylate

500

500

81-81-2

Warfarin

100

500/10,000

82-66-6

Diphacinone

10

10/10,000

86-50-0

Azinphos-Methyl

1

10/10,000

86-88-4

ANTU

100

500/10,000

88-05-1

Aniline, 2,4,6-Trimethyl-

500

500

88-85-7

Dinoseb

1,000

100/10,000

91-08-7

Toluene 2,6-Diisocyanate

100

100

95-48-7

Cresol, o-

100

1,000/10,000

98-05-5

Benzenearsonic Acid

10

10/10,000

98-07-7

Benzotrichloride

10

100

98-13-5

Trichlorophenylsilane

d

500

500

98-16-8

Benzenamine, 3-(Trifluoromethyl)-

500

500

98-87-3

Benzal Chloride

5,000

500

98-95-3

Nitrobenzene

f

1,000

10,000

99-98-9

Dimethyl-p-Phenylenediamine

10

10/10,000

100-14-1

Benzene, 1-(Chloromethyl)-4-Nitro-

500

500/10,000

100-44-7

Benzyl Chloride

100

500

102-36-3

Isocyanic Acid, 3,4-Dichlorophenyl Ester

500

500/10,000

103-85-5

Phenylthiourea

100

100/10,000

106-89-8

Epichlorohydrin

f

100

1,000

106-96-7

Propargyl Bromide

10

10

107-02-8

Acrolein

1

500

107-07-3

Chloroethanol

500

500

107-11-9

Allylamine

500

500

107-12-0

Propionitrile

10

500

107-13-1

Acrylonitrile

f

100

10,000

107-15-3

Ethylenediamine

5,000

10,000

107-16-4

Formaldehyde Cyanohydrin

d

1,000

1,000

107-18-6

Allyl Alcohol

100

1,000

107-30-2

Chloromethyl Methyl Ether

b

10

100

107-44-8

Sarin

d

10

10

107-49-3

TEPP

10

100

108-05-4

Vinyl Acetate Monomer

f

5,000

1,000

108-23-6

Isopropyl Chloroformate

1,000

1,000

108-91-8

Cyclohexylamine

f

10,000

10,000

108-95-2

Phenol

1,000

500/10,000

108-98-5

Thiophenol

100

500

109-61-5

Propyl Chloroformate

500

500

109-77-3

Malononitrile

1,000

500/10,000

110-00-9

Furan

100

500

110-57-6

Trans-1,4-Dichlorobutene

500

500

110-89-4

Piperidine

1,000

1,000

111-44-4

Dichloroethyl Ether

10

10,000

111-69-3

Adiponitrile

f

1,000

1,000

115-21-9

Trichloroethylsilane

d

500

500

115-26-4

Dimefox

500

500

115-29-7

Endosulfan

1

10/10,000

115-90-2

Fensulfothion

d

500

500

116-06-3

Aldicarb

b

1

100/10,000

119-38-0

Isopropylmethyl-pyrazolyl Dimethylcarbamate

100

500

123-31-9

Hydroquinone

f

100

500/10,000

123-73-9

Crotonaldehyde, (E)-

100

1,000

124-65-2

Sodium Cacodylate

100

100/10,000

124-87-8

Picrotoxin

500

500/10,000

126-98-7

Methacrylonitrile

d

1,000

500

129-00-0

Pyrene

b

5,000

1,000/10,000

129-06-6

Warfarin Sodium

d

100

100/10,000

140-29-4

Benzyl Cyanide

d

500

500

140-76-1

Pyridine, 2-Methyl-5-Vinyl-

500

500

141-66-2

Dicrotophos

100

100

143-33-9

Sodium Cyanide (Na(CN))

a

10

100

144-49-0

Fluoroacetic Acid

10

10/10,000

149-74-6

Dichloromethylphenylsilane

1,000

1,000

151-38-2

Methoxyethylmercuric Acetate

500

500/10,000

151-50-8

Potassium Cyanide

a

10

100

151-56-4

Ethyleneimine

1

500

152-16-9

Diphosphoramide, Octamethyl-

100

100

297-78-9

Isobenzan

100

100/10,000

297-97-2

Thionazin

100

500

298-00-0

Parathion-Methyl

b

100

100/10,000

298-02-2

Phorate

10

10

298-04-4

Disulfoton

1

500

300-62-9

Amphetamine

1,000

1,000

302-01-2

Hydrazine

1

1,000

309-00-2

Aldrin

1

500/10,000

315-18-4

Mexacarbate

1,000

500/10,000

316-42-7

Emetine, Dihydrochloride

d

1

1/10,000

327-98-0

Trichloronate

e

500

500

353-42-4

Boron Trifluoride Compound With Methyl Ether (1:1)

1,000

1,000

359-06-8

Fluoroacetyl Chloride

b

10

10

371-62-0

Ethylene Fluorohydrin

b, d

10

10

379-79-3

Ergotamine Tartrate

500

500/10,000

465-73-6

Isodrin

1

100/10,000

470-90-6

Chlorfenvinfos

500

500

502-39-6

Methylmercuric Dicyanamide

500

500/10,000

504-24-5

Pyridine, 4-Amino-

d

1,000

500/10,000

505-60-2

Mustard Gas

d

500

500

506-61-6

Potassium Silver Cyanide

a

1

500

506-68-3

Cyanogen Bromide

1,000

500/10,000

506-78-5

Cyanogen Iodide

1,000

1,000/10,000

509-14-8

Tetranitromethane

10

500

514-73-8

Dithiazanine Iodide

500

500/10,000

534-07-6

Bis(Chloromethyl) Ketone

10

10/10,000

534-52-1

Dinitrocresol

10

10/10,000

535-89-7

Crimidine

100

100/10,000

538-07-8

Ethylbis(2-Chloroethyl)Amine

d

500

500

541-25-3

Lewisite

b, d

10

10

541-53-7

Dithiobiuret

100

100/10,000

542-76-7

Propionitrile, 3-Chloro-

1,000

1,000

542-88-1

Chloromethyl Ether

d

10

100

542-90-5

Ethylthiocyanate

10,000

10,000

555-77-1

Tris(2-Chloroethyl)Amine

d

100

100

556-61-6

Methyl Isothiocyanate

a

500

500

556-64-9

Methyl Thiocyanate

10,000

10,000

558-25-8

Methanesulfonyl Fluoride

1,000

1,000

563-12-2

Ethion

10

1,000

563-41-7

Semicarbazide Hydrochloride

1,000

1,000/10,000

584-84-9

Toluene 2,4-Diisocyanate

100

500

594-42-3

Perchloromethylmercaptan

100

500

597-64-8

Tetraethyltin

b

100

100

614-78-8

Thiourea, (2-Methylphenyl)-

500

500/10,000

624-83-9

Methyl Isocyanate

10

500

627-11-2

Chloroethyl Chloroformate

1,000

1,000

630-60-4

Ouabain

b

100

100/10,000

639-58-7

Triphenyltin Chloride

500

500/10,000

640-19-7

Fluoroacetamide

100

100/10,000

644-64-4

Dimetilan

1

500/10,000

675-14-9

Cyanuric Fluoride

100

100

676-97-1

Methyl Phosphonic Dichloride

a

100

100

696-28-6

Phenyl Dichloroarsine

d

1

500

760-93-0

Methacrylic Anhydride

500

500

786-19-6

Carbophenothion

500

500

814-49-3

Diethyl Chlorophosphate

d

500

500

814-68-6

Acrylyl Chloride

d

100

100

824-11-3

Trimethylolpropane Phosphite

d

100

100/10,000

900-95-8

Stannane, Acetoxytriphenyl-

c

500

500/10,000

919-86-8

Demeton-S-Methyl

500

500

920-46-7

Methacryloyl Chloride

100

100

944-22-9

Fonofos

500

500

947-02-4

Phosfolan

100

100/10,000

950-10-7

Mephosfolan

500

500

950-37-8

Methidathion

500

500/10,000

991-42-4

Norbormide

100

100/10,000

998-30-1

Triethoxysilane

500

500

999-81-5

Chlormequat Chloride

d

100

100/10,000

1031-47-6

Triamiphos

500

500/10,000

1066-45-1

Trimethyltin Chloride

500

500/10,000

1122-60-7

Nitrocyclohexane

500

500

1124-33-0

Pyridine, 4-Nitro-,1-Oxide

500

500/10,000

1129-41-5

Metolcarb

1,000

100/10,000

1303-28-2

Arsenic Pentoxide

1

100/10,000

1306-19-0

Cadmium Oxide

100

100/10,000

1314-62-1

Vanadium Pentoxide

1,000

100/10,000

1314-84-7

Zinc Phosphide

a

100

500

1327-53-3

Arsenous Oxide

d

1

100/10,000

1397-94-0

Antimycin A

b

1,000

1,000/10,000

1420-07-1

Dinoterb

500

500/10,000

1464-53-5

Diepoxybutane

10

500

1558-25-4

Trichloro(Chloromethyl)Silane

100

100

1563-66-2

Carbofuran

10

10/10,000

1600-27-7

Mercuric Acetate

500

500/10,000

1622-32-8

Ethanesulfonyl Chloride, 2-Chloro-

500

500

1752-30-3

Acetone Thiosemicarbazide

1,000

1,000/10,000

1910-42-5

Paraquat Dichloride

10

10/10,000

1982-47-4

Chloroxuron

500

500/10,000

2001-95-8

Valinomycin

b

1,000

1,000/10,000

2032-65-7

Methiocarb

10

500/10,000

2074-50-2

Paraquat Methosulfate

10

10/10,000

2097-19-0

Phenylsilatrane

d

100

100/10,000

2104-64-5

EPN

100

100/10,000

2223-93-0

Cadmium Stearate

b

1,000

1,000/10,000

2231-57-4

Thiocarbazide

1,000

1,000/10,000

2238-07-5

Diglycidyl Ether

1,000

1,000

2275-18-5

Prothoate

100

100/10,000

2497-07-6

Oxydisulfoton

d

500

500

2524-03-0

Dimethyl Phosphorochloridothioate

500

500

2540-82-1

Formothion

100

100

2570-26-5

Pentadecylamine

100

100/10,000

2587-90-8

Phosphorothioic Acid, O,O-Dimethyl-S-(2-Methylthio) Ethyl Ester

b, c

500

500

2631-37-0

Promecarb

d

1,000

500/10,000

2636-26-2

Cyanophos

1,000

1,000

2642-71-9

Azinphos-Ethyl

100

100/10,000

2665-30-7

Phosphonothioic Acid, Methyl-, O-(4-Nitrophenyl) O-Phenyl Ester

500

500

2703-13-1

Phosphonothioic Acid, Methyl-, O-Ethyl O-(4-(Methylthio)Phenyl) Ester

500

500

2757-18-8

Thallous Malonate

b, d

100

100/10,000

2763-96-4

Muscimol

1,000

500/10,000

2778-04-3

Endothion

500

500/10,000

3037-72-7

Silane, (4-Aminobutyl)Diethoxymethyl-

1,000

1,000

3254-63-5

Phosphoric Acid, Dimethyl 4-(Methylthio)Phenyl Ester

500

500

3569-57-1

Sulfoxide, 3-Chloropropyl Octyl

500

500

3615-21-2

Benzimidazole, 4,5-Dichloro-2-(Trifluoromethyl)-

c

500

500/10,000

3689-24-5

Sulfotep

100

500

3691-35-8

Chlorophacinone

100

100/10,000

3734-97-2

Amiton Oxalate

100

100/10,000

3735-23-7

Methyl Phenkapton

500

500

3878-19-1

Fuberidazole

100

100/10,000

4044-65-9

Bitoscanate

500

500/10,000

4098-71-9

Isophorone Diisocyanate

g

500

500

4104-14-7

Phosacetim

100

100/10,000

4170-30-3

Crotonaldehyde

100

1,000

4301-50-2

Fluenetil

100

100/10,000

4418-66-0

Phenol, 2,2′-Thiobis(4-Chloro-6-Methyl)-

100

100/10,000

4835-11-4

Hexamethylenediamine, N,N′-Dibutyl-

500

500

5344-82-1

Thiourea, (2-Chlorophenyl)-

100

100/10,000

5836-29-3

Coumatetralyl

500

500/10,000

6533-73-9

Thallous Carbonate

b, d

100

100/10,000

6923-22-4

Monocrotophos

10

10/10,000

7446-09-5

Sulfur Dioxide

f

500

500

7446-11-9

Sulfur Trioxide

a

100

100

7446-18-6

Thallous Sulfate

100

100/10,000

7487-94-7

Mercuric Chloride

500

500/10,000

7550-45-0

Titanium Tetrachloride

1,000

100

7580-67-8

Lithium Hydride

a

100

100

7631-89-2

Sodium Arsenate

1

1,000/10,000

7637-07-2

Boron Trifluoride

500

500

7647-01-0

Hydrogen Chloride (gas only)

f

5,000

500

7664-39-3

Hydrogen Fluoride

100

100

7664-41-7

Ammonia

f

100

500

7664-93-9

Sulfuric Acid

1,000

1,000

7697-37-2

Nitric Acid

1,000

1,000

7719-12-2

Phosphorus Trichloride

1,000

1,000

7722-84-1

Hydrogen Peroxide (Conc >52%)

f

1,000

1,000

7723-14-0

Phosphorus

a, d

1

100

7726-95-6

Bromine

f

500

500

7778-44-1

Calcium Arsenate

1

500/10,000

7782-41-4

Fluorine

e

10

500

7782-50-5

Chlorine

10

100

7783-00-8

Selenious Acid

10

1,000/10,000

7783-06-4

Hydrogen Sulfide

f

100

500

7783-07-5

Hydrogen Selenide

10

10

7783-60-0

Sulfur Tetrafluoride

100

100

7783-70-2

Antimony Pentafluoride

500

500

7783-80-4

Tellurium Hexafluoride

e

100

100

7784-34-1

Arsenous Trichloride

1

500

7784-42-1

Arsine

100

100

7784-46-5

Sodium Arsenite

1

500/10,000

7786-34-7

Mevinphos

10

500

7791-12-0

Thallous Chloride

b, d

100

100/10,000

7791-23-3

Selenium Oxychloride

500

500

7803-51-2

Phosphine

100

500

8001-35-2

Camphechlor

1

500/10,000

8065-48-3

Demeton

500

500

10025-73-7

Chromic Chloride

1

1/10,000

10025-87-3

Phosphorus Oxychloride

1,000

500

10026-13-8

Phosphorus Pentachloride

a

500

500

10028-15-6

Ozone

100

100

10031-59-1

Thallium Sulfate

d

100

100/10,000

10102-18-8

Sodium Selenite

d

100

100/10,000

10102-20-2

Sodium Tellurite

500

500/10,000

10102-43-9

Nitric Oxide

b

10

100

10102-44-0

Nitrogen Dioxide

10

100

10124-50-2

Potassium Arsenite

1

500/10,000

10140-87-1

Ethanol, 1,2-Dichloro-, Acetate

1,000

1,000

10210-68-1

Cobalt Carbonyl

d

10

10/10,000

10265-92-6

Methamidophos

100

100/10,000

10294-34-5

Boron Trichloride

500

500

10311-84-9

Dialifor

100

100/10,000

10476-95-6

Methacrolein Diacetate

1,000

1,000

12002-03-8

Paris Green

1

500/10,000

12108-13-3

Manganese, Tricarbonyl Methylcyclopentadienyl

d

100

100

13071-79-9

Terbufosh

d

100

100

13171-21-6

Phosphamidon

100

100

13194-48-4

Ethoprophos

1,000

1,000

13410-01-0

Sodium Selenate

100

100/10,000

13450-90-3

Gallium Trichloride

500

500/10,000

13463-39-3

Nickel Carbonyl

10

1

13463-40-6

Iron, Pentacarbonyl-

100

100

14167-18-1

Salcomine

500

500/10,000

15271-41-7

Bicyclo[2.2.1]Heptane-2-Carbonitrile, 5-Chloro-6-((((Methylamino)Carbonyl)Oxy)Imino)-, (1s-(1-alpha,2-beta,4-alpha,5-alpha,6E))-

500

500/10,000

16752-77-5

Methomyl

d

100

500/10,000

17702-41-9

Decaborane(14)

500

500/10,000

17702-57-7

Formparanate

100

100/10,000

19287-45-7

Diborane

100

100

19624-22-7

Pentaborane

500

500

20830-75-5

Digoxin

d

10

10/10,000

20859-73-8

Aluminum Phosphide

a

100

500

21548-32-3

Fosthietan

500

500

21609-90-5

Leptophos

500

500/10,000

21908-53-2

Mercuric Oxide

500

500/10,000

21923-23-9

Chlorthiophos

d

500

500

22224-92-6

Fenamiphos

10

10/10,000

23135-22-0

Oxamyl

100

100/10,000

23422-53-9

Formetanate Hydrochloride

d

100

500/10,000

23505-41-1

Pirimifos-Ethyl

1,000

1,000

24017-47-8

Triazofos

500

500

24934-91-6

Chlormephos

500

500

26419-73-8

Carbamic Acid, Methyl-, O-(((2,4-Dimethyl-1, 3-Dithiolan-2-yl)Methylene)Amino)-

100

100/10,000

26628-22-8

Sodium Azide (Na(N 3 ))

a

1,000

500

27137-85-5

Trichloro(Dichlorophenyl)Silane

500

500

28347-13-9

Xylylene Dichloride

100

100/10,000

28772-56-7

Bromadiolone

100

100/10,000

30674-80-7

Methacryloyloxyethyl Isocyanateh

100

100

39196-18-4

Thiofanox

100

100/10,000

50782-69-9

Phosphonothioic Acid, Methyl-, S-(2-(Bis(1-Methylethyl)Amino)Ethyl) O-Ethyl Ester

100

100

53558-25-1

Pyriminil

d

100

100/10,000

58270-08-9

Zinc, Dichloro(4,4-Dimethyl-5((((Methylamino) Carbonyl)Oxy)Imino)Pentanenitrile)-, (T-4)-

100

100/10,000

62207-76-5

Cobalt, ((2,2′-(1,2-Ethanediylbis (Nitrilomethylidyne)) Bis(6-Fluorophenolato)) (2-)-N,N′,O,O′)-

100

100/10,000

* Only the statutory or final RQ is shown. For more information, see 40 CFR 355.61.

Notes:

a. This material is a reactive solid. The TPQ does not default to 10,000 pounds for non-powder, non-molten, non-solution form.

b. The calculated TPQ changed after technical review as described in a technical support document for the final rule, April 22, 1987.

c. Chemicals added by final rule, April 22, 1987.

d. Revised TPQ based on new or re-evaluated toxicity data, April 22, 1987.

e. The TPQ was revised due to calculation error, April 22, 1987.

f. Chemicals on the original list that do not meet toxicity criteria but because of their acute lethality, high production volume and known risk are considered chemicals of concern (“Other chemicals”). (November 17, 1986, and February 15, 1990.)

g. The TPQ was recalculated (September 8, 2003) since it was mistakenly calculated in the April 22, 1987, final rule under the wrong assumption that this chemical is a reactive solid, when in fact it is a liquid. RQ for this chemical was adjusted on September 11, 2006.