# Protection of Stratospheric Ozone: Notice 25 for Significant New Alternatives Policy Program
> **Rule** · Determination of Acceptability. · Published 2010-06-16 · Effective 2010-06-16 · 75 FR 34017
## Document
- **Document number:** 2010-14510
- **Category:** air-emissions
- **Federal Register citation:** 75 FR 34017
- **CFR reference:** 40 CFR 82
- **Publication date:** 2010-06-16
- **Effective date:** 2010-06-16
- **EPA docket:** FRL-9163-5
## Abstract

This Determination of Acceptability expands the list of acceptable substitutes for ozone-depleting substances under the U.S. Environmental Protection Agency's Significant New Alternatives Policy program. The substitutes are for use in the following sectors: Refrigeration and air-conditioning, foam blowing, aerosols, and sterilants. The majority of the acceptability decisions find substitutes acceptable as alternatives to the class II ozone depleting substances hydrochlorofluorocarbon (HCFC)-22, HCFC-142b and blends containing one or both of these substances. EPA is also finding one of the alternatives, HFO- 1234ze, acceptable as a substitute for CFC-113 in the heat transfer end use and as a substitute for CFC-11 in the aerosol propellant end use. The listing of additional refrigerant alternatives as acceptable will provide users in the refrigeration and air-conditioning sector with more options for replacing HCFC-22 and HCFC-142b, which, pursuant to EPA's phaseout regulations, may generally be used only as a refrigerant to service equipment manufactured before January 1, 2010.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/06/16/2010-14510/protection-of-stratospheric-ozone-notice-25-for-significant-new-alternatives-policy-program)
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