In article 9 (determination of degree of disablement)—
(a) at the beginning of sub-paragraph (2)(d) insert the words “subject to sub-paragraph (e)”
(b) after sub-paragraph (2)(d) insert—
(e) the degree of disablement in respect of noise-induced sensorineural hearing loss shall be assessed on a final basis.
(c) after paragraph (4) insert—
(4A) An assessment of the degree of disablement due to service in respect of noise-induced sensorineural hearing loss shall be based solely on hearing loss due to service and shall not include any hearing loss due to age or other factors which are not related to service as a member of the armed forces and which arise after service.
(4B)
(a) Noise-induced sensorineural hearing loss shall be measured by reference to audiometric tests, where available, conducted at or about the termination of the member’s service and the degree of disablement due to service shall be assessed in accordance with paragraph (4C).
(b) Where no such tests were conducted or are available, the assessment of the degree of disablement due to service shall be informed by the earliest available evidence, whether in terms of audiometric tests or other evidence relevant to the level of hearing loss that existed at termination of service. The assessment shall have regard to the relative percentages of degrees of disablement and measured hearing loss specified in Table 1 of Part VI of Schedule 1 but any hearing loss arising after termination of service shall not be included in the assessment.
(4C) Subject to paragraphs (4A), (4B)(b) and (4D), the degree of disablement in respect of noise-induced sensorineural hearing loss which is due to service shall be assessed by—
(a) determining the average total hearing loss for each ear at 1,2 and 3 kHz frequencies; and then by
(b) determining the percentage degree of disablement for each ear in accordance with Table 1 of Part VI of Schedule 1; and then by
(c) determining the average percentage degree of binaural disablement in accordance with the following formula:
((Degree of disablement of better ear × 4) + (Degree of disablement of worse ear)) divided by 5
(d) in subparagraph (c) “better ear” means that ear in which the claimant’s hearing loss is the less and “worse ear” means that ear in which the claimant’s hearing loss is the more.
(4D) Paragraphs (4B) and (4C) shall not be applied so as to reduce any award made prior to 12 April 2004.
(4E) For the purpose of determining the percentage degree of disablement in Table 1 of Part VI of Schedule 1 any fraction of an average hearing loss shall, where the average hearing loss is over 50 dB , be rounded down to the next whole figure.