In Street Bare Rubber, Street Studs, or Pro Street Bare Rubber, you can have one adult passenger as long as they have proper restraints. Young children can ride in addition, as long as they are in car seats or seat belts (as appropriate by size). You cannot hold children on your lap during a race; this is non-negotiable. The safety committee must approve the restraints and the number of passengers in your vehicle, and staging may overrule the allowance of children at their discretion.
In Pro Street Studs, Pro Street Rally, Competition Bare Rubber and Competition Studs, you can have one passenger as long as they have proper restraints and a good fitting helmet.
In Competition Cheaters, passengers are not permitted.
Regardless of division or class, no animals are permitted to be in the vehicle while racing.