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  2. Ozone Layer Protection
  3. Background and Science

EPA’s Vintaging Model of ODS Substitutes

EPA’s Vintaging Model (VM) was developed in the 1990s as a tool for estimating the annual chemical emissions from industrial sectors that have used ODS in their products. The VM is a “bottom-up” model named for its method of tracking an inventory of the in-use stocks and emissions from annual “vintages” of new equipment containing ODS and ODS substitutes that enter into service. The VM estimates the emissions of various ODS substitutes reported in the U.S. Greenhouse Gas (GHG) Inventory and submitted annually to the United Nations Framework Convention on Climate Change (UNFCCC) . The VM estimates emissions from six ODS substitute industrial sectors:

  • refrigeration and air conditioning (AC),
  • foam blowing agents,
  • fire suppression,
  • aerosols,
  • sterilants, and
  • cleaning solvents.

An independent peer review of EPA’s VM was conducted by a contractor in 2017 for six specific VM end-use groups: fire suppression, motor vehicle air conditioning (MVAC), unitary AC, refrigerated transport, large retail food, and construction foam. Several updates in the refrigeration and AC and fire suppression sectors in response to peer review comments were implemented into the VM in 2018.

  • EPA’s Vintaging Model Of ODS Substitutes: A Summary Of The 2017 Peer Review (pdf) (2.03 MB)

Ozone Layer Protection

  • Background and Science
    • Basic Ozone Layer Science
    • Health and Environmental Effects of Ozone Layer Depletion
    • Ozone-Depleting Substances
    • Current State of the Ozone Layer
    • Atmospheric and Health Effects Framework Model
    • EPA’s Vintaging Model of ODS Substitutes
  • Regulatory Programs Under the Clean Air Act
    • Ozone Protection under Title VI of the Clean Air Act
    • ODS Phaseout Program
    • Nonessential Products Ban
    • Significant New Alternatives Policy (SNAP) Program
    • Stationary Refrigeration and Air Conditioning Program
    • Motor Vehicle Air Conditioning Program
    • Enforcement Actions Under Title VI of the Clean Air Act
  • Related Actions and Programs
  • International Action
Contact Us For Information About Ozone Layer Science
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on October 7, 2024
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