Limitation on application of State laws with regard to law enforcement uniform requirements

Notwithstanding any provision of State law, no requirement may be imposed under State law regarding the wearing of a uniform by any Federal law enforcement officer. For purposes of this section, the term Federal law enforcement officer has the meaning given such term in section 115(c) of title 18, United States Code, and includes any officer or employee of the United States with responsibility for enforcing the immigration laws (as such term is defined in section 101 of the Immigration and Nationality Act). In the case of any proceeding against a Federal law enforcement officer pending as of the date of enactment of this Act for a violation of any State law that is contrary to this section, such proceeding may not continue thereafter.