To amend title 49, United States Code, to clarify certain Buy America provisions.

[AI summary unavailable — showing source text] Revises Buy America requirements applicable to Federal mass transportation assistance to define "manufactured goods" to mean each individual item specified in each line item of a procurement. Requires the Secretary of Transportation to publish a detailed written justification in the Federal Register when issuing a waiver from Buy America provisions as to why the waiver is in the public interest. Authorizes the Secretary to grant a waiver from Buy America provisions for a microprocessor, but not for microcomputer equipment. Allows any party adversely affected by an agency action related to Buy America provisions to seek administrative review under the Administrative Procedure Act.…