(1) Beginning January 1, 2028, a producer or retailer may only sell, distribute, or offer for sale in or into Washington a large format battery, covered battery, or battery-containing product that contains a battery that is designed or intended to be easily removable from the product, if the battery is:

(a) Marked with an identification of the producer of the battery, unless the battery is less than one-half inch in diameter or does not contain a surface whose length exceeds one-half inch; and

(b) Beginning January 1, 2030, marked with proper labeling to ensure proper collection and recycling, by identifying the chemistry of the battery and including an indication that the battery should not be disposed of as household waste.

(2) A producer shall certify to its customers, or to the retailer if the retailer is not the customer, that the requirements of this section have been met, as provided in RCW 70A.555.030.

(3) The department may amend, by rule, the requirements of subsection (1) of this section to maintain consistency with the labeling requirements or voluntary standards for batteries established in federal law.