Small-Volume Emission Family

{
  "id": "MLC-T-ENV-025840",
  "term": "Small-Volume Emission Family",
  "field": "Environment",
  "definition": "1. For requirements related to exhaust emissions for nonhandheld engines and to exhaust and evaporative emissions for handheld engines, small-volume emission family means any emission family whose U.S.-directed production volume in a given model year is projected at the time of certification to be no more than 5,000 engines..\n\n2. For requirements related to evaporative emissions for nonhandheld equipment, small-volume emission family means any equipment manufacturer's U.S.-directed production volume for identical fuel tank is projected at the time of certification to be no more than 5,000 units. Tanks are generally considered identical if they are produced under a single part number to conform to a single design or blueprint. Tanks should be considered identical if they differ only with respect to production variability, post-production changes (such as different fittings or grommets), supplier, color, or other extraneous design variables.[40 CFR 1054.801 (CFR 2013)]\n\n3. For requirements related to exhaust emissions for nonhandheld engines and to exhaust and evaporative emissions for handheld engines, small-volume emission family means any emission family whose U.S.-directed production volume in a given model year is projected at the time of certification to be no more than 5,000 engines or pieces of equipment.",
  "references": [
    "40 CFR 1054.801 (CFR 2013)",
    "86 FR 34308; 40 CFR 1054.801 (CFR 2021)"
  ],
  "url": "https://mlchart.com/terminology/environment/small-volume-emission-family/"
}