Therefore, any federal action on parking privileges occurs separately from federal rules on physical parking space accessibility. Since that time, the federal government has created guidelines for parking privileges. Thus, the Uniform System provides model definitions and rules regarding eligibility, application procedures, and issuance of special license plates and placards. It also contains information to aid states in developing reciprocal systems of parking privileges, including sample placards and a model rule regarding reciprocity. The Uniform System is brief. State Responses

All states have laws governing parking privileges for individuals with disabilities, and nearly all states have adopted at least some portion of the Department of Transportation's Uniform System.
State law generally governs parking privileges for people with disabilities. However, federal regulations offer a uniform system of parking privileges, which includes model definitions and rules regarding license plates and placards, parking and parking space design, and interstate reciprocity. The federal government encourages states to adopt this uniform system. As a result, most states have incorporated at least some aspects of the uniform regulations into their handicapped parking laws. This report describes the federal role in parking privileges law, outlines the uniform system's model rules, and briefly discusses state responses to the model federal rules.