From the Document: "Legislation introduced in the House of Representatives in July 2019 would prohibit the U.S. Department of Transportation (DOT) from allowing a foreign airline to serve the United States if it 'is established in a country other than the home country of its majority owner or owners in order to avoid regulations of the home country.' The bill, H.R. 3632, is the latest salvo in a prolonged battle over issuance of a foreign air carrier permit that allows Norwegian Air Shuttle, which owns a group of discount carriers, to operate transatlantic flights to U.S. destinations."
CRS Insight, IN11158
Congressional Research Service: https://crsreports.congress.gov/