This California vehicle law defines two types of manufacturers involved in creating a housecar, which is essentially a motorhome. The 'first-stage manufacturer' is the one who makes the engine, chassis, and drive train. The 'second-stage manufacturer' takes these parts and installs the structure and equipment, making the vehicle suitable for people to live in and ready to be sold.

This law requires that when you buy a new housecar, the dealer must provide you with a list and copies of all express warranties they know about from manufacturers or other sources. You must sign the list to confirm you've received these warranties, and the dealer also signs to confirm they're giving you all known warranties. Both parties keep a copy of this signed list. Not following this rule is considered a minor legal violation.