California Code, Penal Code - PEN § 384i

(a) Sections 384a to 384f, inclusive, shall not apply to maintenance and construction activities of public agencies and their employees.

(b) Sections 384b to 384f, inclusive, shall not apply to native desert plants described in subdivision (b) of Section 384b, that have been propagated and cultivated by human beings and which are being transported under Section 6922 or 6923 of the Food and Agricultural Code, pursuant to a valid nursery stock certificate.

(c) Sections 384a to 384f, inclusive, shall not apply to any act regulated by the provisions of Division 23 (commencing with Section 80001) of the Food and Agricultural Code.