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 water conditioning contractor installs water conditioning equipment with the use of only such pipe and fittings as are necessary to connect the water conditioning equipment to the water supply system and to by-pass all those parts of the water supply system within the premises from which conditioned water is to be excluded.