Public Resources Code § 5163.1

The examination shall consist of an approved intradermal tuberculosis test, which, if positive, shall be followed by an X-ray of the lungs.

Nothing in Sections 5163 to 5163.2, inclusive, shall prevent the governing body of any city or county, upon recommendation of the local health officer, from establishing a rule requiring a more extensive or more frequent examination than required by Section 5163 and this section.