Cal. Code Regs. tit. 25 § 132
Where electrical wiring or appliances are installed, the installation shall be in accordance with the applicable requirements contained in the California Electrical Code, Part 3, Title 24, California Code of Regulations.
Exceptions to Installation Requirements. In structures where electrical usage is confined to one or more rooms of a structure, the remainder of the structure shall not be required to be wired or otherwise fitted for electrification unless the enforcement agency determines the electrical demands are expected to exceed the confinement and capacity of that room(s). In these instances, the enforcement agency may require further electrification of the structure.
It is the intent of this subsection to apply to buildings in which there exists a workshop, kitchen, or other single room which may require electrification, and where there is no expectation of further electrical demand. The enforcement agency shall, at the time of a permit application or other appropriate point, advise the applicant of the potential hazards of violating this section.
Cal. Code Regs. Tit. 25, § 132
Note: Authority cited: Sections 17003.5, 17921, 50061.5 and 50559, Health and Safety Code. Reference: Section 17922, Health and Safety Code.