California has some of the most advanced and intricate licensing and permitting in the nation. Strong and detailed environmental regulations mean extra licensing for businesses such as mechanics and healthcare organizations. Cities often take care of some of the most local issues like valet parking, while counties manage health permitting, particularly food businesses. California itself oversees many industries, particularly professions and businesses that affect public safety.
In California, a solar contractor installs, modifies, maintains, and repairs thermal and photovoltaic solar energy systems. A licensee classified in this section shall not undertake or perform building or construction trades, crafts, or skills, except when required to install a thermal or photovoltaic solar energy system.