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  1. Home
  2. Phaseout of Ozone-Depleting Substances
  3. Exemptions to the ODS Phaseout

Phaseout Exemptions for Laboratory and Analytical Uses

The laboratory and analytical use exemption allows the continued production and import of small amounts of class I ozone-depleting substances (ODS) for use in essential laboratory and analytical procedures. EPA has finalized a rulemaking that indefinitely extends the current exemption, which currently expires on December 31, 2021. This exemption does not apply to class II ODS (i.e., HCFCs).

Laboratory uses include:

  • Equipment calibration
  • Extraction solvent, diluent, or carrier for chemical analysis
  • Biochemical research
  • Inert solvent for chemical reactions, or as a carrier or laboratory chemical
  • Other critical analytical and laboratory purposes

In order to sell class I ODS, laboratory supply distributors must keep and submit reports according to 40 CFR 82.13.

Distributors must:

  • Report quarterly the quantity received of each controlled substance from each producer or importer.
  • Report quarterly the quantity of each controlled substance purchased by each laboratory customer whose certification was previously provided to the distributor.
  • Maintain as records copies of certifications provided by laboratory customers.

Distributors who only sell class I ODS as reference standards for calibrating laboratory analytical equipment may request permission to submit the reports required under paragraph (v) of 40 CFR 82.13 annually rather than quarterly.

In order to purchase class I ODS, laboratory customers must provide the producer, importer, or distributor of the substance with a one-time-per-year certification for each controlled substance, affirming that the substance will only be used for essential laboratory applications and will not be resold or used in manufacturing.

Key Documents

  • Federal Register link to the 2021 final rulemaking to extend the exemption indefinitely
  • Federal Register link to the 2020 proposal to extend the exemption indefinitely 
  • Federal Register link to the 2015 final rule extending the exemption through December 31, 2021 

Phaseout of Ozone-Depleting Substances

  • Overview of ODS Phaseout
    • Class I ODS
    • Class II ODS
    • HCFC Allowance System
  • ODS Production, Destruction, Import, and Export
    • Importing
    • Labeling
    • Recordkeeping and Reporting
    • Destruction Technologies
    • Process Agents
    • Emissions Standards
  • Exemptions to the ODS Phaseout
    • Methyl Bromide
    • Essential Uses (Metered-Dose Inhalers)
    • Laboratory and Analytical Uses
    • Halons Program
  • For Equipment Owners, Operators, and Consumers
Contact Us about Phaseout of Ozone-Depleting Substances
Contact Us about Phaseout of Ozone-Depleting Substances to ask a question, provide feedback, or report a problem.
Last updated on July 19, 2024
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