California Code
ARTICLE 1 - Food Processing Establishments
Section 111975.

111975. The side walls and ceilings of every bakery, confectionery, hotel, or restaurant kitchen shall be well plastered or ceiled with metal or lumber, or shall be oil painted or kept well lime washed, or otherwise kept in a good sanitary condition.

(Added by Stats. 1995, Ch. 415, Sec. 6. Effective January 1, 1996.)