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OAR Policy and Guidance Metarecord

Document Title/Subject:
Interim Final Rule Prohibiting the Use of MT-31
Related Documents:
Signed by:

Signature Date:

Contact:
Kevin Rosseel

Filename(s):
URL(s):
http://www.epa.gov/fedrgstr/EPA-AIR/1999/January/Day-26/a1764.htm
http://www.epa.gov/ozone/snap/regs/64fr3861.pdf


 

Regulatory Authority:
Title 6
Division/Director:
Stratospheric Protection Division (OAP) / Drusilla Hufford
Submitted By:
dibble.christine
OGC Contact:
Jan Tierney
OGC Phone#:
202.260.5095
Internet Contact:
Kevin Rosseel
Document Type:
Proposed & Final Preambles & Rules,
EPA Document Number:

Federal Register:
64 FR 3861 01/26/99
Supersedes:
Subject Category:
AIR
ENVIRONMENTAL PROTECTION AGENCY
GOVERNMENT
HUMAN HEALTH
Ozone
Keywords:
Ozone
Ozone layer
phaseout ODS ozone-depleting stratosphere CFC chlorofluorocarbon solvent Montreal Protocol class I class II hexafluoropropylene refrigeration MT-31 HCFC-22 R-22
Terms:
Clean Air Act
CAA
Environmental policy
Abstract:
With this action, EPA's Significant New Alternatives Policy (SNAP) program lists as unacceptable for all refrigeration and air-conditioning end-uses the refrigerant blend known by the trade name MT-31. This refrigerant blend was previously listed as an acceptable substitute for CFC-12 and HCFC-22 in various end-uses within the refrigerant and air-conditioning sector. After June 3, 1997, the date on which EPA published the Notice of Acceptability that listed MT-31 as acceptable, EPA became aware of toxicity data concerning one of the chemicals contained in the MT-31 blend that present significant concerns about risks to human health that may arise as a result of the use of this chemical, either alone or in a blend, in the refrigeration and air-conditioning sector. Today, therefore, EPA is removing MT-31 from the list of acceptable substitutes, and is listing MT-31 as unacceptable in all refrigeration and air-conditioning end-uses.

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