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EPA Restrictions on Methylene Chloride (DCM)

NOTE: We are currently working on a new way to access EH&S documents that will provide a better online experience. In the interim, for access to the documents below, send an email to ehs@fau.edu or contact a member of the EH&S Team on our Contacts Webpage.Ìý

In 2024, the EPA published new rules prohibiting most uses of Methylene Chloride (MC), Tetrachloroethylene, and Trichloroethylene (TCE).Ìý Although MC is still permitted in academic and research laboratories, users must comply with strict rules that require exposure monitoring (funded by the college/researcher), training, PPE, SOPs, and an Exposure Control Plan (ECP).Ìý

It is strongly recommended that academic and research labs eliminate or substitute MC because the added cost and difficulty of compliance will be a significant burden on colleges/researchers.Ìý

Minimum requirements for laboratory continued use of Methylene Chloride after May 5, 2025

1. Contact EH&S with the intent to continue use.
2. Provide EH&S with a Tag# to charge the initial assessment/exposure monitoring.
3. Identify the controlled access location where MC will be authorized for use
4. Complete an Exposure Control Plan
5. Identify and source appropriate PPE
6. Complete training provided by EH&S
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List of Methylene Chloride-containing Products
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Alternative Chemicals Selection
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Review the information in these links for assistance when selecting alternative chemicals.
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  • : 2-methyl tetrahydrofuran (2-MeTHF) or Ethyl acetate
  • Ethyl acetate, Heptane, Toluene, 2-MeTHF, Methyl tert-butyl ether

  • : Cyclopentyl methyl ether, or mixtures like dimethyl carbonate and methanol or ethyl acetate and isopropanol; can use reverse phase chromatography instead
    eluents and mixtures with heptanes, methyl tert-butyl ether, methanol, ethanol, ethyl acetate, and isopropanol for separations involving neutral, acidic, and basic compounds
    Replacements in Reactions: for Dess-Martin/Swern, Sakurai, Friedel-Crafts, and Diels-Alder reactions; 2-methyltetrahydrofuran for ; dimethyl carbonate for
  • Other alternatives identified, including non-lab use.Ìý
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Below are some helpful compliance resources.

EPA Chemical Bans - FAQsÌý

SOP Template - MCÌý

Exposure Control Plan Template