The American LNG First Act of 2026 aims to simplify regulations for certain vessels that transport liquefied natural gas (LNG) by exempting them from specific coastwise endorsement requirements. The main objective is to facilitate the transportation of LNG within the United States, potentially boosting domestic energy production and supply. The key provisions of this legislation allow vessels that transport LNG to receive documentation without needing to meet certain coastwise laws, which typically require vessels to be American-owned and flagged.