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A Guide to United States Imported Motor Vehicle Equipment and Parts Compliance Requirements



Karen Reczek, Lisa M. Benson


Once a law has been enacted by Congress, the appropriate federal agency (e.g., the Consumer Product Safety Commission, the Federal Trade Commission, the National Highway Traffic Safety Administration, et al.) may create the regulations to implement the law. Before such regulations can be adopted, the appropriate federal agency ordinarily will issue a notice of proposed rulemaking (NPRM) to solicit public comments on the proposed rules. To provide opportunity for public comment, the appropriate federal agency must issue draft regulations or “Proposed Rules” that are published in the Federal Register and as a WTO TBT notification. The agency reviews the comments and can then issue a “Final Rule” that also is published in the Federal Register, and later, published annually in the Code of Federal Regulations (CFR). Together, the enabling acts and laws [published in the United States Code (USC) once passed] and the final regulations (published in the CFR) provide a framework for the implementation and enforcement of most federal laws in the United States.
NIST Interagency/Internal Report (NISTIR) - 8120
Report Number


Reczek, K. and Benson, L. (2016), A Guide to United States Imported Motor Vehicle Equipment and Parts Compliance Requirements, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed June 15, 2024)


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Created August 24, 2016, Updated November 10, 2018