The following tanks are not subject to this part:
(a)
Tanks under the jurisdiction or inspection of the United States government.
(b)
Air pressure tanks used in household domestic services.
(c)
Tanks of 112 cubic feet or less which are not subject to a pressure of more than 150 pounds per square inch.
(d)
Air pressure tanks supplied with air by the same air compressor which supplies air for the brakes of any motor vehicle or streetcar, which units of transportation are operated by any person, firm, or corporation subject to the jurisdiction of the United States Department of Transportation or the California Highway Patrol.
(e)
Tanks not subject to an internal or external pressure or more than 15 pounds per square inch, irrespective of size.