California Code, Health and Safety Code - HSC § 25141.6

In any case where the department proposes to make a determination that a waste meets one or more of the criteria and guidelines for the identification of hazardous wastes adopted pursuant to Section 25141, but that it is not necessary to manage the waste as a hazardous waste because the waste possesses mitigating physical and chemical characteristics that render it insignificant as a hazard to human health, safety, or the environment, the department shall issue a public notice of that proposed determination. The public notice shall be electronically posted on the department's Internet home page at least 30 days before the determination becomes final and shall also be sent to all of the following: