California Code, Health and Safety Code - HSC § 113150

(a) When there occurs, in the household of any dairy worker, milkman, milk dealer, milk distributor, creamery worker, or pasteurizing plant operator, a case or a suspected case of a milk transmitted disease listed pursuant to Section 120130, the sale or distribution of milk from those premises is prohibited unless written authorization for its sale or distribution is given by the health officer.

(b) A case or suspected case of any disease that occurs in the household of any of the above-mentioned persons, and that is known to be transmitted by milk, shall be reported immediately to the health officer.