Region

{
  "id": "MLC-T-ENV-023583",
  "term": "Region",
  "field": "Environment",
  "definition": "1. The name of the geographic region to which the control strategy is to be applied. This is for user information only and does not impact the strategy results in any way. This is different from the concept of \"Locale\" used in the control measure efficiency records to indicate the state or county code to which the record applies. See \"Control Strategy Tool (CoST) Control Measures Database (CMDB) Documentation\" for more information on the use of Locale.\n\n2. Any explicitly defined geographic area. In the EMAP objectives, region refers to the ten standard Federal regions (OMB 1974).\n\n3. Air quality control region designated under section 107 of the Act and described in part 81 of this chapter.[84 FR 32520; Repeal of the Clean Power Plan; Emission Guidelines for Greenhouse Gas Emissions From Existing Electric Utility Generating Units; Revisions to Emission Guidelines Implementing Regulations]\n\n4. The geographic region or area to which a particular Assessment Unit belongs.",
  "subject": "Air",
  "references": [
    "Control Strategy Tool (CoST) Glossary",
    "Environmental Modeling and Assessment Program (EMAP) Master Glossary",
    "40 CFR 60.21a (CFR 2020)",
    "Expert Query Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/region/"
}