Cal. Pub. Res. Code § 40506.7

For the purposes of disseminating information relating to its activities, powers, duties, or functions, the Department of Resources Recycling and Recovery may issue publications, construct and maintain exhibits, and perform acts and carry out functions that in the opinion of the Director of Resources Recycling and Recovery will best disseminate the information. The publications may be distributed free of charge to public libraries and to other state departments and state officers. The Department of Resources Recycling and Recovery may exchange copies with contemporary publications. All money received by the Department of Resources Recycling and Recovery from the sale of publications, exclusive of money received by any separate division of the department from the sale of publications, shall be paid into the State Treasury to the credit of the General Fund.