The U.S. Congress is responsible for passing transportation laws, conducting oversight of existing transportation policy programs, and funding these programs. Resources available for finding information on congressional transportation security activities include:
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House Homeland Security Committee HSSE DOC Y 4.H 75
Congressional Research Service (Courtesy: Library of Congress 2018-present)
House Appropriations Committee HSSE MF Y 4.AP 6/1:T 68/ Rep. Peter Visclosky (D-IN) is a member of this committee.
Senate Commerce, Science, & Transportation Committee HSSE DOC Y 4.C 73/7 Senator Todd Young (R-IN) is a member of this committee.