2005 California Health and Safety Code Sections 18630 Article 4. Plumbing

18630.  The department shall adopt regulations regarding plumbing in
parks that it determines are reasonably necessary for the protection
of life and property and to carry out the purposes of this part.
The department shall propose and submit building standards for
approval pursuant to Chapter 4 (commencing with Section 18935) of
Part 2.5 for the purposes described in this section.  The building
standards published in the California Building Standards Code and the
other regulations adopted by the department shall apply to all
plumbing within permanent buildings, except a park in a city, county,
or city and county that has adopted and is enforcing a plumbing code
with amendments adopted pursuant to Section 17958.5 and which city,
county, or city and county is the enforcement agency.