16. Chiropractors advertising a price, a rebate, a discount or free products or services must(1) establish fixed amounts, if applicable;
(2) specify the nature and extent of the services included in the price, rebate, discount or free products or services;
(3) indicate if additional services likely to be required are not included and, if such is the case, indicate their price;
(4) give more importance to the services than to the price, rebate, discount or free products or services; and
(5) keep the price, rebate, discount or free products or services in effect for a minimum period of 90 days after the advertisement was last broadcast or published.
Despite the foregoing, nothing prevents chiropractors from agreeing with a patient on a price lower than the one published or broadcast.