Section 4303 Of Article 1. American-made Materials From California Government Code >> Division 5. >> Title 1. >> Chapter 4. >> Article 1.
4303
. The governing body of any political subdivision, municipal
corporation, or district, and any public officer or person charged
with the letting of contracts for (1) the construction, alteration,
or repair of public works or (2) for the purchasing of materials for
public use, shall let such contracts only to persons who agree to use
or supply only such unmanufactured materials as have been produced
in the United States, and only such manufactured materials as have
been manufactured in the United States, substantially all from
materials produced in the United States.