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SNAP

SIGNIFICANT NEW ALTERNATIVES POLICY

October 4, 2018

www.epa.gov/ozone/snap

FACT SHEET

Protection of Stratospheric Ozone: New Listings for the Significant
New Alternatives Policy Program in Refrigeration & Air
Conditioning, Foam Blowing, Fire Suppression, Aerosols, and

Solvent Cleaning Sectors

Action Listing New Acceptable
Substitutes

Section 612 of the Clean Air Act requires EPA to
evaluate alternatives to ozone-depleting substances.

EPA's Significant New Alternatives Policy (SNAP)
program reviews substitutes in a comparative risk
framework, using the same risk criteria for all SNAP
decisions. Section 612 requires EPA to list as
acceptable those substitutes that do not present a
significantly greater risk to human health and the
environment as compared with other substitutes
that are currently or potentially available.

This determination of acceptability (Notice 34)
expands EPA's SNAP list of acceptable substitutes,
providing industry with more options in the
refrigeration and air conditioning, foam blowing, fire
suppression, aerosols, and cleaning solvents sectors.

Notice 34

What is included in the Notice?

•	Eight additional acceptable substitutes that reduce
overall risk to human health and environment

Which industrial sectors are included?

•	Refrigeration & Air Conditioning

•	Foam Blowing

•	Fire Suppression

•	Aerosols

•	Cleaning Solvents

What health and environmental impacts of

substitutes does EPA evaluate?

•	Atmospheric effects, toxicity, flammability,
occupational and consumer health/safety, local air
quality, and ecosystem effects

SUMMARY OF ACCEPTABLE SUBSTITUTES

Sector

End-Use

Substitutes

Refrigeration & Air Conditioning

Ice Skating Rinks (Retrofit)

R-448A, R-449A, R-449B

Ice Skating Rinks (New & Retrofit)

R-450A, R-513A

Foam Blowing

Rigid Polyurethane and Polyisocyanurate
Laminated Boardstock

Acetone/lsopentane blend

Fire Suppression

Total Flooding

Powdered Aerosol E

Aerosols

Aerosol Solvents

HFO-1336mzz(Z)

Cleaning Solvents

Electronics Cleaning, Metals Cleaning,
Precision Cleaning

HFO-1336mzz(Z)

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