C-16, r. 12 - Regulation respecting advertising by chiropractors
7. Advertising may be distributed door-to-door or by mail only in the following cases:
(1) where it appears in a newspaper, magazine, periodical, directory or other printed matter;
(2) where it appears in the heading of letters or bills; or
(3) where it is published in any of the circumstances specified in paragraph 3 of section 3.