Cal. Health & Safety Code § 25250.25
(a) Any person who manufactures containers which are produced specifically for the noncommercial storage or transportation of used oil and which are sold in this state to consumers, shall not sell or transfer any of those containers in this state to any person, unless the container meets all of the following requirements:
(3) The following statement shall be printed on a readily visible part of the container in at least 12-point typeface by the manufacturers of the container:
“Used oil is classified as a hazardous waste under California law. Used oil must be recycled properly. Placing used oil into household garbage or commercial dumpsters or pouring it into sewers or onto the ground is prohibited by law.”