This legislation, titled the Marianas Air Service Improvement Act , proposes to amend section 41731(c) of title 49, United States Code. Its primary purpose is to exempt the Northern Mariana Islands from specific eligibility requirements for the federal essential air service program. The bill achieves this by ensuring that subparagraphs (B), (C), and (D) of subsection (a)(1) will not apply to locations within the Northern Mariana Islands. This provision mirrors existing exemptions for the State of Alaska and the State of Hawaii , thereby streamlining access to essential air services for the region.