(1) After July 1, 1994, a person may not sell or distribute for sale a laundry detergent that contains 0.5 percent or more phosphorus by weight.

(2)(a) After July 1, 1994, and until the dates specified in this subsection, a person may not sell or distribute for sale a dishwashing detergent that contains 8.7 percent or more phosphorus by weight.

(b) Beginning July 1, 2008, in counties located east of the crest of the Cascade mountains with populations greater than four hundred thousand, as determined by office of financial management population estimates, a person may not sell or distribute for sale a dishwashing detergent that contains 0.5 percent or more phosphorus by weight.

(c) From July 1, 2008, to June 30, 2010, in counties located west of the crest of the Cascade mountains with populations greater than one hundred eighty thousand and less than two hundred twenty thousand, as determined by office of financial management population estimates, a person may not sell or distribute for sale a dishwashing detergent that contains 0.5 percent or more phosphorus by weight except in a single-use package containing no more than 2.0 grams of phosphorus.

(d) Beginning July 1, 2010, a person may not sell or distribute for sale a dishwashing detergent that contains 0.5 percent or more phosphorus by weight in the state.

(e) For purposes of this section, "single-use package" means a tablet or other form of dishwashing detergent that is constituted and intended for use in a single washing.

(3) This section does not apply to the sale or distribution of detergents for commercial and industrial uses.