(1) A chiropractor shall not, on behalf of himself/herself, his/her partner, associate or any other chiropractor affiliated with his/her office or clinic, use or allow to be used, any form of public communications or advertising which is false, fraudulent, deceptive or misleading, including, but not limited to, such advertising which takes any of the following forms which are prohibited:

(a) Advertising which guarantees any result or cure;

(b) Advertising which makes claims of professional superiority;

(c) Advertising which fails to differentiate chiropractic care from all other methods of healing;

(d) Advertising for a service outside the practice of chiropractic as permitted in Washington.

(2) A chiropractor shall, upon request made by the commission, provide the commission with substantiation of the truth and accuracy of any and all claims made in their advertisements.

(3) Advertising is prohibited which offers gratuitous goods or services or discounts in connection with chiropractic services, unless the chiropractor provides a disclosure statement to be signed by the patient which explains:

(a) When there shall be a charge for goods and services;

(b) When the free services have been completed and that any additional services the patient requests are subject to charge; or

(c) When the discount has been exhausted and any additional services shall be subject to full charge: This subsection shall not be construed to relate to the negotiation of fee between chiropractors and patients or to prohibit the rendering of chiropractic services for which no fee is charged.