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  2. Ground-level Ozone Pollution

Complete List of VOC Exemption Rules

Number

Compound

Exemption Date

FR Cita­tion

Link

1

methane

July 8, 1977

42 FR 35314

https://www.govinfo.gov/content/pkg/FR-1977-07-08/pdf/FR-1977-07-08.pdf#page=148

2

ethane

July 8, 1977

42 FR 35314

https://www.govinfo.gov/content/pkg/FR-1977-07-08/pdf/FR-1977-07-08.pdf#page=148

3

1,1,1 trichloroethane (methyl chloroform)

July 8, 1977

42 FR 35314

https://www.govinfo.gov/content/pkg/FR-1977-07-08/pdf/FR-1977-07-08.pdf#page=148

Air Quality- Recommended policy on control of VOC

July 8, 1977

42 FR 35314

https://www.govinfo.gov/content/pkg/FR-1977-07-08/pdf/FR-1977-07-08.pdf#page=148

4

Dichloromethane (methylene chloride)

June 4, 1979

44 FR 32042

https://www.govinfo.gov/content/pkg/FR-1979-06-04/pdf/FR-1979-06-04.pdf#page=112

5

Clarification on dichloromethane (methylene chloride and/or methyl chloroform)

May 16, 1980

45 FR 32424

https://www.govinfo.gov/content/pkg/FR-1980-05-16/pdf/FR-1980-05-16.pdf#page=146

6

trichlorofluoromethane (CFC-11)

July 22, 1980

45 FR 48941

https://www.govinfo.gov/content/pkg/FR-1980-07-22/pdf/FR-1980-07-22.pdf#page=103

7

dichlorodifluoromethane (CFC-12)

July 22, 1980

45 FR 48941

https://www.govinfo.gov/content/pkg/FR-1980-07-22/pdf/FR-1980-07-22.pdf#page=103

8

chlorodifluoromethane (HCFC-22)

July 22, 1980

45 FR 48941

https://www.govinfo.gov/content/pkg/FR-1980-07-22/pdf/FR-1980-07-22.pdf#page=103

9

trifluoromethane (HFC-23)

July 22, 1980

45 FR 48941

https://www.govinfo.gov/content/pkg/FR-1980-07-22/pdf/FR-1980-07-22.pdf#page=103

10

1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113)- Trichlorotrifluoroethane

July 22, 1980

45 FR 48941

https://www.govinfo.gov/content/pkg/FR-1980-07-22/pdf/FR-1980-07-22.pdf#page=103

11

1,2-dichloro-1,1,2,2-tetrafluoroethane (CFC-114)

July 22, 1980

45 FR 48941

https://www.govinfo.gov/content/pkg/FR-1980-07-22/pdf/FR-1980-07-22.pdf#page=103

12

chloropentafluoroethane (CFC-115)

July 22, 1980

45 FR 48941

https://www.govinfo.gov/content/pkg/FR-1980-07-22/pdf/FR-1980-07-22.pdf#page=103

13

1,1,1-trifluoro-2,2-dichloroethane (HCFC-123)

January 18, 1989

54 FR 1987

https://www.govinfo.gov/content/pkg/FR-1989-01-18/pdf/FR-1989-01-18.pdf#page=71

14

1,1,1,2-tetrafluoroethane (HFC-134a)

January 18, 1989

54 FR 1987

https://www.govinfo.gov/content/pkg/FR-1989-01-18/pdf/FR-1989-01-18.pdf#page=71

15

1,1-dichloro-1-fluoroethane (HCFC-141b)

January 18, 1989

54 FR 1987

https://www.govinfo.gov/content/pkg/FR-1989-01-18/pdf/FR-1989-01-18.pdf#page=71

16

1-chloro-1,1-difluoroethane (HCFC-142b)

January 18, 1989

54 FR 1987

https://www.govinfo.gov/content/pkg/FR-1989-01-18/pdf/FR-1989-01-18.pdf#page=71

17

2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124)

March 18, 1991

56 FR 11418

https://www.govinfo.gov/content/pkg/FR-1991-03-18/pdf/FR-1991-03-18.pdf#page=80

18

pentafluoroethane (HFC-125)

March 18, 1991

56 FR 11418

https://www.govinfo.gov/content/pkg/FR-1991-03-18/pdf/FR-1991-03-18.pdf#page=80

19

1,1,2,2-tetrafluoroethane (HFC-134)

March 18, 1991

56 FR 11418

https://www.govinfo.gov/content/pkg/FR-1991-03-18/pdf/FR-1991-03-18.pdf#page=80

20

1,1,1-trifluoroethane (HFC-143a)

March 18, 1991

56 FR 11418

https://www.govinfo.gov/content/pkg/FR-1991-03-18/pdf/FR-1991-03-18.pdf#page=80

21

1,1-difluoroethane (HFC-152a)

March 18, 1991

56 FR 11418

https://www.govinfo.gov/content/pkg/FR-1991-03-18/pdf/FR-1991-03-18.pdf#page=80

Perfluorocarbon compounds that fall into these classes:

22

cyclic, branched, or linear, completely fluorinated alkanes;

March 18, 1991

56 FR 11418

https://www.govinfo.gov/content/pkg/FR-1991-03-18/pdf/FR-1991-03-18.pdf#page=80

23

cyclic, branched, or linear, completely fluorinated ethers with no unsaturations;

March 18, 1991

56 FR 11418

https://www.govinfo.gov/content/pkg/FR-1991-03-18/pdf/FR-1991-03-18.pdf#page=80

24

cyclic, branched, or linear, completely fluorinated tertiary amines with no unsaturations; and,

March 18, 1991

56 FR 11418

https://www.govinfo.gov/content/pkg/FR-1991-03-18/pdf/FR-1991-03-18.pdf#page=80

25

sulfur containing perfluorocarbons with no unsaturations and with sulfur bonds only to carbon and fluorine

March 18, 1991

56 FR 11418

https://www.govinfo.gov/content/pkg/FR-1991-03-18/pdf/FR-1991-03-18.pdf#page=80

EPA adopted a definition of VOC in 40 CFR 51.100(s)

February 3, 1992

https://ecfr.io/Title-40/Section-51.100

26

parachlorobenzotrifluoride (PCPTF)

October 5, 1994

59 FR 50693

https://www.govinfo.gov/content/pkg/FR-1994-10-05/pdf/FR-1994-10-05.pdf#page=25

27

cyclic, branched, or linear completely methylated siloxanes

October 5, 1994

59 FR 50693

https://www.govinfo.gov/content/pkg/FR-1994-10-05/pdf/FR-1994-10-05.pdf#page=25

28

acetone

June 16, 1995

60 FR 31633

https://www.govinfo.gov/content/pkg/FR-1995-06-16/pdf/95-14804.pdf#page=1

29

tetrachloroethylene (perchloroethylene)

February 7, 1996

61 FR 4588

https://www.govinfo.gov/content/pkg/FR-1996-02-07/pdf/96-2495.pdf#page=2

30

3,3-dichloro-1,1,1,2,2-pentafluoropropane (HCFC-225ca)

October 8, 1996

61 FR 52848

https://www.govinfo.gov/content/pkg/FR-1996-10-08/pdf/96-25787.pdf#page=1

31

1,3-dichloro-1,1,2,2,3-pentafluoropropane (HCFC-225cb)

October 8, 1996

61 FR 52848

https://www.govinfo.gov/content/pkg/FR-1996-10-08/pdf/96-25787.pdf#page=1

32

1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC-43-10mee)

October 8, 1996

61 FR 52848

https://www.govinfo.gov/content/pkg/FR-1996-10-08/pdf/96-25787.pdf#page=1

33

difluoromethane (HFC-32)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

34

ethylfluoride (HFC-161)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

35

1,1,1,3,3,3-hexafluoropropane (HFC-236fa)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

36

1,1,2,2,3-pentafluoropropane (HFC-245ca)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

37

1,1,2,3,3-pentafluoropropane (HFC-245ea)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

38

1,1,1,2,3-pentafluoropropane (HFC-245eb)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

39

1,1,1,3,3-pentafluoropropane (HFC-245fa)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

40

1,1,1,2,3,3-hexafluoropropane (HFC-236ea)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

41

1,1,1,3,3-pentafluorobutane (HFC-365mfc)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

42

chlorofluoromethane (HCFC-31)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

43

1-chloro-1-fluoroethane (HCFC-151a)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

44

1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

45

1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxy-butane (C4F9OCH3) or (HFE-7100)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

46

2-(difluoromethoxymethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)2CFCF2OCH3)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

47

1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane (C4F9OC2H2H5) or (HFE-7200)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

48

2-(ethoxydifluoromethyl)-1,1,1,2,3,3,3-heptafluoropropane ((CF3)2CFCF2OC2H5)

August 25, 1997

62 FR 44900

https://www.govinfo.gov/content/pkg/FR-1997-08-25/pdf/97-22510.pdf#page=1

49

methyl acetate

April 9, 1998

63 FR 17331

https://www.govinfo.gov/content/pkg/FR-1998-04-09/pdf/98-9247.pdf#page=1

50

1,1,1,2,2,3,3- heptafluoro-3-methoxy-propane (n-C3F7OCH3  or HFE-7000)

November 29, 2004

69 FR 69290

https://www.govinfo.gov/content/pkg/FR-2004-11-29/pdf/04-26070.pdf#page=1

51

3-ethoxy-1,1,1,2,3,4,4,5,5,6,6,6-dodecafluoro-2-(trifluoromethyl) hexane (HFE-7500)

November 29, 2004

69 FR 69290

https://www.govinfo.gov/content/pkg/FR-2004-11-29/pdf/04-26070.pdf#page=1

52

1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea)

November 29, 2004

69 FR 69290

https://www.govinfo.gov/content/pkg/FR-2004-11-29/pdf/04-26070.pdf#page=1

53

Methyl formate

November 29, 2004

69 FR 69290

https://www.govinfo.gov/content/pkg/FR-2004-11-29/pdf/04-26070.pdf#page=1

54

t-butyl acetate, see also Feb 25, 2016 (81 FR 9339)

November 29, 2004

69 FR 69298

https://www.govinfo.gov/content/pkg/FR-2004-11-29/pdf/04-26069.pdf#page=1

Revisions to the California State Implementation Plan and Revision to the Definition of Volatile Organic Compounds (VOC)—Removal of VOC Exemptions for California’s Aerosol Coating Products Reactivity-based Regulation

September 13, 2005

70 FR 53930

https://www.govinfo.gov/content/pkg/FR-2005-09-13/pdf/05-18016.pdf 

Interim Guidance on Control of Volatile Organic Compounds in Ozone State Implementation Plans

September 13, 2005 70 FR 54046 https://www3.epa.gov/ttn/naaqs/aqmguide/collection/cp2/20050913_70fr_54046-54051_interim_guidance_control_voc.pdf

55

1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-trifluoromethyl-pentane (also known as HFE-7300)

January 18, 2007

72 FR 2193

https://www.govinfo.gov/content/pkg/FR-2007-01-18/pdf/E7-638.pdf#page=1

56

Propylene carbonate

January 21, 2009

74 FR 3437

https://www.govinfo.gov/content/pkg/FR-2009-01-21/pdf/E9-1150.pdf#page=1

57

Dimethyl carbonate

January 21, 2009

74 FR 3437

https://www.govinfo.gov/content/pkg/FR-2009-01-21/pdf/E9-1150.pdf#page=1

58

trans-1,3,3,3-tetrafluoropropene (HFO-1234ze)

June 22, 2012

77 FR 37610

https://www.govinfo.gov/content/pkg/FR-2012-06-22/pdf/2012-15347.pdf#page=1

59

HCF2OCF2H (HFE-134)

February 12, 2013

78 FR 9823

https://www.govinfo.gov/content/pkg/FR-2013-02-12/pdf/2013-03057.pdf#page=1

60

HCF2OCF2OCF2H (HFE-236cal2)

February 12, 2013

78 FR 9823

https://www.govinfo.gov/content/pkg/FR-2013-02-12/pdf/2013-03057.pdf#page=1

61

HCF2OCF2CF2OCF2H (HFE-338pcc13)

February 12, 2013

78 FR 9823

https://www.govinfo.gov/content/pkg/FR-2013-02-12/pdf/2013-03057.pdf#page=1

62

HCF2OCF2OCF2CF2OCF2H (H-Galden 1040X, ZT 130, 150, or 180)

February 12, 2013

78 FR 9823

https://www.govinfo.gov/content/pkg/FR-2013-02-12/pdf/2013-03057.pdf#page=1

63

trans-1-chloro-3,3,3-trifluoroprop-1-ene (SolsticeTM 1233zd(E))

August 28, 2013

78 FR 53029

https://www.govinfo.gov/content/pkg/FR-2013-08-28/pdf/2013-21014.pdf#page=1

64

2,3,3,3-tetrafluoropropene   (HFO-1234yf)

October 22, 2013

78 FR 62451

https://www.govinfo.gov/content/pkg/FR-2013-10-22/pdf/2013-23783.pdf#page=1

65

2-amino-2-methyl-1-propanol (AMP)

March 27, 2014

79 FR 17037

https://www.govinfo.gov/content/pkg/FR-2014-03-27/pdf/2014-06790.pdf#page=1

66

TBAC- Record Keeping drop

February 25, 2016

81 FR 9339

https://www.govinfo.gov/content/pkg/FR-2016-02-25/pdf/2016-04072.pdf#page=1

67

1,1,2,2-Tetrafluoro-1-(2,2,2-trifluoroethoxy) ethane (HFE-347pcf2)

August 1, 2016

81 FR 50408

https://www.govinfo.gov/content/pkg/FR-2016-08-01/pdf/2016-17790.pdf#page=1

68

cis-1,1,1,4,4,4-hexafluorobut-2-ene (HFO-1336mzz-Z)

November 28, 2018

83 FR 61127

https://www.govinfo.gov/content/pkg/FR-2018-11-28/pdf/2018-25891.pdf#page=1

69

(2E)-1,1,1,4,4,4-hexafluorobut-2-ene (HFO-1336mzz(E)), 8226-8233

February 8, 2023

88 FR 8226

https://www.govinfo.gov/content/pkg/FR-2023-02-08/pdf/2023-02384.pdf

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