PDFWAC 246-273-060
Unfair practices.
Manufacturers of approved additives advertised, sold, or distributed in Washington state shall:
(1) Make no claims relating to the elimination of the need for septic tank pumping or proper septic tank maintenance;
(2) List the components of additive products on the product label, along with information regarding instructions for use and precautions;
(3) Make no false statements, design, or graphic representation relative to an additive product that is inconsistent with RCW 70A.105.060, 70A.105.070, or 70A.105.080; and
(4) Make no claims, either direct or implied, about the performance of the product based on state approval of its ingredients.