Concerning extended producer responsibility requirements associated with paint.

HB 2301 requires paint manufacturers in Washington to manage leftover architectural paint (interior/exterior paint sold in 5-gallon containers or less) through a statewide stewardship program. The bill mandates manufacturers to develop programs focused on reducing waste, promoting reuse, recycling, and proper disposal of leftover paint, following a specific waste hierarchy (reduce > reuse > recycle > disposal). Paint retailers may voluntarily collect leftover paint, and a "stewardship assessment" fee would be added to paint purchases to fund the program, shifting disposal costs from local governments to producers. This directly affects paint manufacturers and consumers purchasing architectural paint, while aiming to reduce landfill waste and environmental risks.