Cal. Code Regs. tit. 14, § 17331
(H) The owner or tenant of any premises, business establishment or industry shall be responsible for the satisfactory removal of all refuse accumulated by him on his property or his premises. To prevent propagation, harborage, or attraction of flies, rodents or other vectors and the creation of nuisances, refuse, except for inert materials, shall not be allowed to remain on the premises for more than seven days, except when:
1. Amendment filed 7-25-78; effective thirtieth day thereafter (Register 78, No. 30).