{"data":{"id":"us/40-cfr-1043.20","jurisdiction":"us","citation":"40 CFR 1043.20","heading":"Definitions.","body":"The following definitions apply to this part:\n2008 Annex VI means Annex VI to the MARPOL Protocol, including the amendments from Annex 12, adopted through April 2014 (incorporated by reference in § 1043.100). This version of Annex VI does not include any amendments that may be adopted in the future. This 2008 version applies for certain provisions of this part such as those applicable for internal waters and for non-Party vessels.\nAdministrator means the Administrator of the Environmental Protection Agency.\nAnnex VI means Annex VI of the MARPOL Protocol.\nAPPS means the Act to Prevent Pollution from Ships (33 U.S.C. 1901-1915).\nDesignated Certification Officer means the EPA official to whom the Administrator has delegated authority to issue EIAPP certificates. Note that the Designated Certification Officer is also delegated certain authorities under this part in addition to the authority to issue EIAPP certificates.\nECA associated area means the U.S. internal waters that are navigable from the ECA. This term does not include internal waters that are shoreward of ocean waters that are not part of an emission control area.\nEIAPP certificate means a certificate issued to certify initial compliance with Regulation 13 of Annex VI. (Note that EIAPP stands for Engine International Air Pollution Prevention under Annex VI.)\nEmission control area (ECA) means an area designated pursuant to Annex VI as an Emission Control Area that is in force.\nEngine has the meaning given in 40 CFR 1068.30.\nEPA means the United States Environmental Protection Agency.\nForeign-flagged vessel means a vessel of foreign registry or a vessel operated under the authority of a country other than the United States.\nGood engineering judgment has the meaning given in 40 CFR 1068.30. We will evaluate engineering judgments as described in 40 CFR 1068.5.\nGreat Lakes means all the streams, rivers, lakes, and other bodies of water that are within the drainage basin of the St. Lawrence River, west of Anticosti Island.\nIMO means the International Maritime Organization.\nMajor conversion has the meaning given in 2008 Annex VI (incorporated by reference in § 1043.100).\nMARPOL Protocol has the meaning given in 33 U.S.C. 1901.\nNavigable waters has the meaning given in 33 U.S.C. 1901.\nNon-Party vessel means a vessel flagged by a country that is not a party to Annex VI.\nNOX Technical Code means the “Technical Code on Control of Emission of Nitrogen Oxides from Marine Diesel Engines” adopted by IMO (incorporated by reference in § 1043.100). The Technical Code is part of 2008 Annex VI.\nOperator has the meaning given in 33 U.S.C. 1901.\nOwner has the meaning given in 33 U.S.C. 1901.\nParty vessel means a vessel flying the flag of, registered in, or operating under the authority of a country that is a party to Annex VI.\nPerson has the meaning given in 33 U.S.C. 1901.\nPublic vessel means a warship, naval auxiliary vessel, or other vessel owned or operated by a sovereign country when engaged in noncommercial service. Vessels with a national security exemption under 40 CFR 1042.635 are deemed to be public vessels with respect to compliance with NOX-related requirements of this part when engaged in noncommercial service. Similarly, vessels with one or more installed engines that have a national security exemption under 40 CFR 1090.605 are deemed to be public vessels with respect to compliance with fuel content requirements when engaged in noncommercial service.\nSecretary has the meaning given in 33 U.S.C. 1901.\nU.S. EEZ means the Exclusive Economic Zone of the United States, as defined in Presidential Proclamation 5030 of March 10, 1983.\nU.S.-flagged vessel means a vessel of U.S. registry or a vessel operated under the authority of the United States.\nVessel has the meaning given to “ship” in APPS.\nWe means EPA.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER U—AIR POLLUTION CONTROLS","PART 1043—CONTROL OF NOX, SOX, AND PM EMISSIONS FROM MARINE ENGINES AND VESSELS SUBJECT TO THE MARPOL PROTOCOL"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"a4dd4e613a5ce598d5cfb52398ff55fad2d00416c077c99728f0ede30517c768","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-1043.10","next":"us/40-cfr-1043.30"},"notice":"GroundRules: Original legal text. Not legal advice."}