Substitutes for Tobacco Expansion

Substitutes are reviewed on the basis of ozone depletion potential, global warming potential, toxicity, flammability, and exposure potential. Lists of acceptable and unacceptable substitutes are updated several times each year. A chronological list of SNAP updates is also available.

Note: SNAP Notices and Final Rules published in the Federal Register take precedence over all information on the web site.

**Acceptable Substitutes for CFC-11**
Substitute	Comments
Carbon Dioxide	New equipment only.
Propane	Propane tobacco expansion is a patented process. Flammability may be of concern for workers. Major sources of VOC emissions are subject to the New Source Review (NSR) program under the CAA.

Substitutes for Tobacco Expansion

Note: SNAP Notices and Final Rules published in the Federal Register take precedence over all information on the web site.

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