Section 3
SEC. 3. The collection of data and information prescribed in section two may be secured by the mailing or delivery of the necessary questionnaire or form and explanatory matter to the persons best qualified to furnish such data or information and in which case the proprietor, official, Government official or employee, partner, director or legal representative to whom such questionnaire or form is mailed or delivered shall be required to accomplish such questionnaire or form personally or cause the same to be accomplished by his duly authorized agent or representative. Any person who fails or refuses to accomplish, mail or deliver such questionnaire or form received by him to the Bureau of the Census and Statistics within thirty days of its receipt by him; or any person who, in accomplishing any such questionnaire or fbnn, knowingly gives data or information which shall prove to be materially untrue in any particular; or any person who signs such questionnaire or form after it has been accomplished in the knowledge that it is untrue in any particular shall, upon conviction, be punished by a fine of not more than six hundred pesos or by imprisonment for not more than six months, or by both.