Regular Production Option
A Regular Production Option (RPO) is a standardized 3-digit alphanumeric code used by General Motors to designate vehicle options and modifications since at least the 1950s (see Corvette C1). RPO codes could be considered vehicle "genetic codes", since the complete configuration of a GM vehicle (as it exited the factory) can be described by specifying its year, base model, and all its RPO codes.
RPOs appeared on/in several records, including:
- dealership order forms / invoices
- assembly plant instructions (Production Broadcast Notices, aka Build Sheets)
- Fisher Body Number Plates (aka Cowl Tags ~1929-1984)
- Vehicle Window Sticker
- Protect-O-Plates (1965-72), Ident-O-Plates (1963-64 Pontiac)
- SPID Label (~1967-2017)
- QR label (since 2018)
Vehicle records have been digitized into GMs' electronic database since at least 1990.. Some dealerships are willing to print a vehicle's RPO list (with definitions) using its VIN.