3.01. A hearing-aid acoustician may publish or allow to be published, solely in newspapers, magazines, periodicals, telephone or business directories, advertisements containing all or part of that which is indicated in section 2.01. With the exception of a telephone directory, such advertisement may not appear more than once in the same issue of a newspaper, magazine, periodical or other printed matter.
R.R.Q., 1981, c. A-33, r. 7, s. 3.01.