£

<

33

\

&

ro

¦Z.

Ui

O

p*

^4 PRO^°

SNAP

SIGNIFICANT NEW ALTERNATIVES POLICY

December 11, 2020

www.epa.gov/ozone/snap

FACT SHEET

Protection of Stratospheric Ozone: Determination 36 for
Significant New Alternatives Policy Program

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 36)
expands EPA's SNAP list of acceptable substitutes,
providing industry with more options in the
refrigeration and air conditioning, foam blowing,
and fire suppression sectors.

SUMMARY OF ACCEPTABLE SUBSTITUTES

Notice 36

What is included in the Notice?

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

Which industrial sectors are included?

•	Refrigeration & Air Conditioning

•	Foam Blowing

•	Fire Suppression

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

Sector

End-Use

Substitutes

Refrigeration & Air Conditioning

industrial Process Refrigeration (New & Retrofit)

HCFO-1233zd(E)

Centrifugal Chillers (New)

Positive Displacement Chillers (New)

Industrial Process Air Conditioning (New)

R-515B

Foam Blowing

Polystyrene: extruded boardstock and billet

HFO-1336mzz(Z)/HFC~152a blends

Flexible Polyurethane

Integral Skin Polyurethane

Rigid Polyurethane and Polyisocyanurate

Laminated Boardstock

Rigid Polyurethane Appliance

Rigid Polyurethane Commercial Refrigeration

Rigid Polyurethane Sandwich Panels

Rigid Polyurethane Slabstock and other

HFO-1336mzz(E)

Rigid Polyurethane Spray Foam (HP 2-
component, LP 2-component, one-component)

HFO-1336mzz(E), Methylal

Fire Suppression

Total flooding (normally occupied and
unoccupied spaces)

HCFO-1233zd(E)/C6-perfluoroketone blend

-------