- to approve; confirm or ratify.
- to register (a specific make of automobile in general production) so as to make it eligible for international racing competition.
- to approve or ratify (a deed or contract, esp one that is defective)
- to confirm (a proceeding, etc)
- to recognize (a particular type of car or car component) as a production model or component rather than a prototype, as in making it eligible for a motor race
