To codify into law a comprehensive regulatory regime that is currently imposed on vehicle repair facilities through administrative regulations, including a state registration mandate. The bill also revises some details and definitions in these requirements. The bill was amended late in the process to permit repair shop from replacing a major part on a newer vehicle with one not made by the vehicle's maker, if the customer directs this to be done in writing. Note: Previous descriptions of this vote here and on Votespotter did not make this last detail clear. The version of the bill that originally passed the House and Senate would have prohibited mechanics from using non-Original Equipment Manufacturer (OEM) parts on newer vehicles, but with its adoption of the Pettalia amendment, the House allowed non-OEM parts to be used at the customer's discretion.