CA Health & Safety Code Section 25218.12

(a)

A public agency may conduct a materials exchange program as a part of its household hazardous waste collection program if the public agency determines which reusable household hazardous products or materials are suitable and acceptable for distribution to the public in accordance with a quality assurance plan prepared by the public agency. The public agency shall instruct the recipient to use the product in a manner consistent with the instructions on the label.

(b)

If the recipient of a household hazardous product or material is a business or employer, the recipient shall be responsible for obtaining any written information necessary for compliance with the Hazardous Substances Information and Training Act (Chapter 1 (commencing with Section 6360) of Part 7 of Division 5 of the Labor Code).