Exhibit 1, 561 FW 1
Ozone Depleting Substances
FWM#:  415 (Supersedes Director's Order 138, 8/7/01)
Date: December 26, 2002
Series: Pollution Control
Part 561:   Compliance Requirements
Originating Office: Division of Engineering


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The most common Class I ozone depleting substances are:

Type

ODS
Refrigerants:

    Chlorofluorohydrocarbons (CFCs)

    Hydrochlorofluorocarbons  (HCFCs)


CFCs (R-11 or CFC-11)

Mixture of CFCs and HCFCs

     - R-500 (R-12 and HCFC 152a)
     - R-502 (CFC-115 and HCFC-22)

Fire Extinguishing Systems Halon 1211 and 1301

Solvents 		Carbon Tetrachloride

Fumigants 		Methyl Bromide

Class II substances include HCFC-21 and HCFC-22.

For information on the specific content of this chapter, contact the Division of Engineering.  For additional information regarding this Web page, contact Krista Holloway, in the Division of Policy and Directives Management, at Krista_Holloway@fws.gov.
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