California Code
ARTICLE 11 - Bottle Caps and Labels
Section 36031.

36031. It is unlawful for any person that sells or handles market milk, except the original bottler of the market milk, to have in his possession, or under his control, any milk bottle cap or label, except the caps or labels that are affixed to the filled containers at the time of delivery to the seller or handler.

(Enacted by Stats. 1967, Ch. 15.)