Model Year

{
  "id": "MLC-T-ENV-017645",
  "term": "Model Year",
  "field": "Environment",
  "definition": "1. Model year refers to the actual annual production period (year) as determined by the manufacturer.\n\n2. The vehicle manufacturer's annual production period (e.g., vehicles manufactured in January 1994 are considered to be part of the 1994 model year). If the manufacturer has no annual production period (e.g., the model year is not explicitly specified by the manufacturer for many vehicles manufactured for sale in foreign countries), the model year is considered to be the calendar year in which a vehicle is manufactured. For a vehicle modified by an ICI, the ICI's model year is the calendar year in which it modifies the vehicle.\n\n3. Refers to the \"sales\" model year; for example, vehicles sold during the period from October 1 to the next September 31 is considered one model year.\n\n4. Manufacturer's annual production period (as determined under § 85.2304) which includes January 1 of such calendar year, provided, that if the manufacturer has no annual production period, the term “model year” shall mean the calendar year.\n\n5. As it applies to the clean fuel vehicle fleet purchase requirements, means September 1 through August 31.\n\n6. Manufacturer’s annual new model production period which includes January 1 of the calendar year, ends no later than December 31 of the calendar year, and does not begin earlier than January 2 of the previous calendar year. Where a manufacturer has no annual new model production period, model year means calendar year. [40 CFR 89.2 (CFR 2018)][40 CFR 90.3 (CFR 2018)][40 CFR 91.3 (CFR 2018)]\n\n7. Calendar year; except where the Administrator determines a different production period which includes January 1 of such calendar year.\n\n8. Manufacturer’s annual production period which includes January 1 of such calendar year; Provided, that if the manufacturer has no annual production period, the term ‘‘model year’’ shall mean the calendar year. [40 CFR 204.51 (CFR 2018)]\n\n9. Manufacturer’s annual production period (as determined by the Administrator) which includes January 1 of such calendar year. If a manufacturer has no annual production period, the term ‘‘model year’’ means the calendar year.\n\n10. Calendar year in which a locomotive is manufactured or remanufactured.\n\n11. Manufacturer’s annual new model production period, except as restricted under this definition. It must include January 1 of the calendar year for which the model year is named, may not begin before January 2 of the previous calendar year, and it must end by December 31 of the named calendar year. Manufacturers may not adjust model years to circumvent or delay compliance with emission standards or to avoid the obligation to certify annually.\n\n12. One of the following for compliance with this part 1037. Note that manufacturers may have other model year designations for the same vehicle for compliance with other requirements or for other purposes: [Definition truncated. For full definition, see 40 CFR 1037.801 (CFR 2018)]\n\n13. One of the following things:\n\n14. Any of the following: (1) For freshly manufactured marine engines (see definition of ‘‘new marine engine,’’ paragraph (1)), model year means one of the following: (i) Calendar year of production\n\n15. One of the following things: (1) For freshly manufactured vessels and engines (see definition of ‘‘new propulsion marine engine,’’ paragraph (1)), model year means one of the following: (i) Calendar year. (ii) Your annual new model production period if it is different than the calendar year. This must include January 1 of the calendar year for which the model year is named. It may not begin before January 2 of the previous calendar year and it must end by December 31 of the named calendar year. For seasonal production periods not including January 1, model year means the calendar year in which the production occurs, unless you choose to certify the applicable engine family with the following model year. For example, if your production period is June 1, 2010 through November 30, 2010, your model year would be 2010 unless you choose to certify the engine family for model year 2011.\n\n16. For freshly manufactured equipment and engines (see definition of ‘‘new nonroad engine,’’ paragraph (1)), model year means one of the following: (i) Calendar year. (ii) Your annual new model production period if it is different than the calendar year. This must include January 1 of the calendar year for which the model year is named. It may not begin before January 2 of the previous calendar year and it must end by December 31 of the named calendar year\n\n17. One of the following things: (1) For freshly manufactured vehicles (see definition of ‘‘new,’’ paragraph (1)), model year means one of the following: (i) Calendar year. (ii) Your annual new model production period if it is different than the calendar year. This must include January 1 of the calendar year for which the model year is named. It may not begin before January 2 of the previous calendar year and it must end by December 31 of the named calendar year. For seasonal production periods not including January 1, model year means the calendar year in which the production occurs, unless you choose to certify the applicable emission family with the following model year. For example, if your production period is June 1, 2010, through November 30, 2010, your model year would be 2010 unless you choose to certify the emission family for model year 2011.\n\n18. Meaning given in 40 CFR part 1060 for equipment and means one of the following things for engines: (1) For freshly manufactured engines (see definition of ‘‘new nonroad engine,’’ paragraph (1)), model year means your annual new model production period. This must include January 1 of the calendar year for which the model year is named. It may not begin before January 2 of the previous calendar year and it must end by December 31 of the named calendar year. For seasonal production periods not including January 1, model year means the calendar year in which the production occurs, unless you choose to certify the applicable emission family with the following model year. For example, if your production period is June 1, 2010 through November 30, 2010, your model year would be 2010 unless you choose to certify the emission family for model year 2011. [40 CFR 1054.801 (CFR 2018)]One of the following things: (1) For equipment defined as ‘‘new nonroad equipment’’ under paragraph (1) of the definition of ‘‘new nonroad engine,’’ model year means one of the following: (i) Calendar year.\n\n19. Calendar year in which the engine is modified for imported engines described in paragraph (5)(ii) of the definition of “new nonroad engine” in this section.",
  "abbreviation": "MY",
  "subject": "Air",
  "references": [
    "Green Vehicle Guide Glossary",
    "Importing Vehicles and Engines Glossary",
    "Greenhouse Gas Emissions",
    "40 CFR 85.2302 (CFR 2018)",
    "40 CFR 88.304 (CFR 2018)",
    "40 CFR 94.2 (CFR 2018)",
    "40 CFR 92.2 (CFR 2018)",
    "40 CFR 205.51 (CFR 2018)",
    "40 CFR 600.002 (CFR 2018)",
    "40 CFR1033.901 (CFR 2018)",
    "40 CFR 1036.801 (CFR 2018)",
    "86 FR 34308; 40 CFR 1037.801 (CFR 2021)",
    "Definition truncated. For full definition, see 40 CFR 1039.801 (CFR 2018)",
    "Definition truncated. For full definition, see 40 CFR 1042.901 (CFR 2018)",
    "Definition truncated. For full definition, see 40 CFR 1045.801 (CFR 2018)",
    "Definition truncated. For full definition, see 40 CFR 1048.801 (CFR 2018)",
    "Definition truncated. For full definition, see 40 CFR 1051.801 (CFR 2018)",
    "Definition truncated. For full definition, see 40 CFR 1060.801 (2018)",
    "86 FR 34308; 40 CFR 1039.801 (CFR 2021)"
  ],
  "url": "https://mlchart.com/terminology/environment/model-year/"
}