GT Group
- Periods E, F (from 1947 to 1965
- Periods G1, G2, H1, H2, I, J1 and J2 (from 1966 to 1990)
- Group 3: Stock GT
- Group 4: Competition GT
- Group 5: Special production from groups 1 to 4
- Saloon Car
- Group B Competition GT
Porsche 964 must comply with Appendix 2 of this regulation « Porsche 964 Technical Criteria ».
Touring Group
- Periods E, F (from 1947 to 1965)
- Periods G1, G2, H1, H2, I, J1 and J2 (from 1966 to 1990)
- Group 1: Stock Touring
- Group 2: Competition Touring
- Special production from groups 1 à 4
- Saloon Car
- Group N Stock Touring
- Group A Competition Touring
Proto Group
- Periods E, F (from 1947 to 1965)
- Period GR (from 1966 to 1971)
- SP 1 : Sport proto 2L
- SP 2 : Sport proto + 2L
- Period HR (from 1972 to 1976)
- SP 3 : Sport proto 2L
- SP 4 : Sport proto + 2L
- Sports 2000 up to 1986 on file; without Aerodynamic appendix, in compliance with SRCC Sports 2000 Historic, SRCC Sports 2000 Pinto regulations and appendix 3 of this regulation « Technical rules Sport 2000 »
« Continuation cars » are accepted.
HTP (Historic Technical Passport) is not compulsory. The technical passport made by an ASN is compulsory.