The main purpose of this legislation, known as the Safety Grant Consistency Act, is to limit the authority of the Secretary of Transportation regarding highway safety grant programs. It aims to prevent the establishment of new performance measures or regulatory requirements that could complicate or impose additional burdens on these programs. Key provisions of the Act include a prohibition on the Secretary of Transportation from creating any new performance measures or regulatory requirements for highway safety grant programs. This applies to programs defined under specific sections of U.S.