§ 63.99 Delegated Federal authorities.

(a) This section lists the specific source categories that have been delegated to the air pollution control agencies in each State under the procedures described in this subpart.

(1) Alabama. (i) The following table lists the specific part 63 standards that have been delegated unchanged to the Alabama Department of Environmental Management for all sources. The “X” symbol is used to indicate each subpart that has been delegated. The delegations are subject to all of the conditions and limitations set forth in Federal law, regulations, policy, guidance, and determinations. Some authorities cannot be delegated and are retained by EPA. These include certain General Provisions authorities and specific parts of some standards.

Part 63 Major & Area Source Rule Delegations—Alabama ¹

	Source category	Subpart	ADEM 2	JCDH 3	HDNR 4
1	HON	F, G, H, I	X	X	X
2	Polyvinyl Chloride & Co-polymers, VACATED on 5/11/05	J
3	Coke Ovens	L	X	X	X
4	Dry Cleaners	M	X	X	X
5	Chromium Electroplating	N	X	X	X
6	EtO Commercial Sterilization	O	X	X	X
7	Chromium Cooling Towers	Q	X	X	X
8	Gasoline Distribution (stage 1)	R	X	X	X
9	Pulp & Paper I	S	X	X	X
10	Halogenated Solvent Cleaning	T	X	X	X
11	Polymer & Resins 1	U	X	X	X
12	Polymer & Resins 2	W	X	X	X
13	Secondary Lead Smelters	X	X	X	X
14	Marine Tank Vessel Loading	Y	X	X
15	Phosphoric Acid Mfg	AA	X	X	X
16	Phosphate Fertilizers Prod	BB	X	X	X
17	Petroleum Refineries	CC	X	X	X
18	Offsite Waste & Recovery	DD	X	X	X
	Tanks; Level 1	OO	X	X	X
	Containers	PP	X	X	X
	Surface Impoundments	QQ	X	X	X
	Drain Systems	RR	X	X	X
	Oil-Water Separators	VV	X	X	X
19	Magnetic Tape	EE	X	X	X
20	Aerospace Industry	GG	X	X	X
21	Oil & Natural Gas Prod	HH	X	X	X
	Area Source Requirements >>.
22	Shipbuilding and Repair	II	X	X	X
23	Wood Furniture Mfg	JJ	X	X	X
24	Printing & Publishing	KK	X	X	X
25	Primary Aluminum	LL
26	Pulp & Paper II (Combustion sources)	MM	X	X	X
27	Generic MACT:
	Control Devices	SS	X	X	X
	Eq. Leaks—Level 1	TT	X	X	X
	Eq. Leaks—Level 2	UU	X	X	X
	Tanks—Level 2	WW	X	X	X
28	Generic MACT:
	Ethylene Mfg	XX & YY	X	X	X
	Carbon Black	YY	X	X	X
	Spandex Prod	YY	X	X	X
	Cyanide Chemical Mfg	YY	X	X	X
	Acetal Resins	YY	X	X	X
	Acrylic/Modacrylic Fibers	YY	X	X	X
	Hydrogen Fluoride Prod	YY	X	X	X
	Polycarbonates Prod	YY	X	X	X
29	Steel Pickeling	CCC	X	X	X
30	Mineral Wool Prod	DDD	X	X	X
31	Hazardous Waste Combustion (Phase I)	EEE	X	X	X
32	Boilers that burn Haz. Waste (Phase II)	EEE	X	X	X
33	HCL Prod. Furnaces burning Haz. Waste (P II)	EEE	X	X	X
34	Pharmaceutical Prod	GGG	X	X	X
35	Nat. Gas Transmission & Storage	HHH	X	X	X
36	Flexible Polyurethane Foam Prod	III	X	X	X
37	Polymer & Resins 4	JJJ	X	X	X
38	Portland Cement	LLL	X	X	X
39	Pesticide Active Ingredients	MMM	X	X	X
40	Wool Fiberglass	NNN	X	X	X
41	Polymer & Resins 3 (Amino & Phenolic)	OOO	X	X	X
42	Polyether Polyols Prod	PPP	X	X	X
43	Primary Copper	QQQ	X
44	Secondary Aluminum Prod	RRR	X	X	X
45	Primary Lead Smelting	TTT
46	Petro Refineries (FCC units)	UUU	X	X	X
47	POTW	VVV	X	X	X
48	Ferroalloys	XXX	X	X	X
49	Municipal Landfills	AAAA	X	X	X
50	Nutritional Yeast	CCCC	X	X	X
51	Plywood and Composite Wood Prod. (Partial Vacatur Oct. 07)	DDDD	X	X	X
52	Organic Liquids Distribution (non-gas)	EEEE	X	X	X
53	Misc. Organic NESHAP	FFFF	X	X	X
54	Vegetable Oil	GGGG	X	X	X
55	Wet Formed Fiberglass	HHHH	X	X	X
56	Auto & Light Duty Truck (coating)	IIII	X	X	X
57	Paper & Other Webs	JJJJ	X	X	X
58	Metal Can (coating)	KKKK	X	X	X
59	Misc. Metal Parts (coating)	MMMM	X	X	X
60	Large Appliances (coating)	NNNN	X	X	X
61	Printing, Coating, & Dyeing Fabrics	OOOO	X	X	X
62	Plastic Parts & Products (coating)	PPPP	X	X	X
63	Wood Building Products	QQQQ	X	X	X
64	Metal Furniture (coating)	RRRR	X	X	X
65	Metal Coil (coating)	SSSS	X	X	X
66	Leather Tanning & Finishing	TTTT	X
67	Cellulose Ethers Prod. Misc. Viscose Processes	UUUU	X
68	Boat Manufacturing	VVVV	X	X	X
69	Reinforced Plastic Composites	WWWW	X	X	X
70	Rubber Tire Mfg	XXXX	X	X	X
71	Stationary Combustion Turbines	YYYY	X	X	X
72	Reciprocating Int. Combustion Engines	ZZZZ	X	X	X
	Area Source Requirements >>.
73	Lime Manufacturing	AAAAA	X	X	X
74	Semiconductor Production	BBBBB	X	X	X
75	Coke Ovens: (Push/Quench/Battery/Stacks)	CCCCC	X	X	X
76	Industrial/Commercial/Institutional Boilers & Process Heaters, VACATED on 7/30/07	DDDDD
77	Iron Foundries	EEEEE	X	X	X
78	Integrated Iron & Steel	FFFFF	X	X	X
79	Site Remediation	GGGGG	X	X	X
80	Misc. Coating Manufacturing	HHHHH	X	X	X
81	Mercury Cell Chlor-Alkali	IIIII	X	X	X
82	Brick & Structural Clay Products, VACATED on 6/18/07	JJJJJ
83	Clay Ceramics Manufacturing, VACATED on 6/18/07	KKKKK
84	Asphalt Roofing & Processing	LLLLL	X	X	X
85	Flex. Polyurethane Foam Fabrication	MMMMM	X
86	Hydrochloric Acid Prod/Fumed Silica	NNNNN	X	X	X
87	Engine & Rocket Test Facilities	PPPPP	X	X	X
88	Friction Materials Manufacturing	QQQQQ	X	X	X
89	Taconite Iron Ore	RRRRR	X	X	X
90	Refactories	SSSSS	X
91	Primary Magnesium	TTTTT	X	X	X
Area Source Rules
92	Hospital Sterilizers	WWWWW
93	Stainless and Nonstainless Steel Mfg. Electric Arc Furnaces	YYYYY
94	Iron & Steel foundries	ZZZZZ
95	Gasoline Distribution—Bulk	BBBBBB
96	Gasoline Dispensing Facilities	CCCCCC
97	PVC & Copolymers Prod	DDDDDD	X	X
98	Primary Copper	EEEEEE	X	X
99	Secondary Copper Smelting	FFFFFF	X	X
100	Primary Nonferrous Metals	GGGGGG	X	X
101	Paint Stripping	HHHHHH
	Auto-Body Refinishing
	Plastic Parts & Prod. (coating)
102	Acrylic/Modacrylic Fibers Prod	LLLLLL
103	Carbon Black Prod	MMMMMM
104	Chemical Mfg. Chrom	NNNNNN
105	Flex. Polyurethane Foam Fab	OOOOOO
	Flex. Polyurethane Foam Prod
106	Lead Acid Battery Mfg	PPPPPP
107	Wood Preserving	QQQQQQ
108	Clay Ceramics Mfg	RRRRRR
109	Glass Mfg	SSSSSS
110	Secondary Nonferrous Metals	TTTTTT
110	Plating and Polishing	WWWWWW
112	Industrial Mach. & Eq. Finishing	XXXXXX
	Elect. & Electronics Eq. Finishing
	Fabricated Metal Prod
	Fabricated Plate Work (Boiler Shop)
	Fabricated Structural Metal Mfg
	Heating Eq. Mfg
	Iron and Steel Forging
	Primary Metals Prod. Mfg
	Valves and Pipe Fittings Mfg
113	Ferroalloys Production	YYYYYY
	Ferro/Silico Manganese

¹ State program approved on October 29, 2001. Table last updated on October 5, 2008.

² Alabama Department of Environmental Management.

³ Jefferson County Department of Health.

⁴ Huntsville Department of Natural Resources.

(ii) Alabama Department of Environmental Management (ADEM) may implement and enforce alternative requirements in the form of title V permit terms and conditions for International Paper Prattville Mill, Prattville, Alabama, for subpart MM of this part—National Emission Standards for Hazardous Air Pollutants for Chemical Recovery Combustion Sources at Kraft, Soda, Sulfite, and Stand-Alone Semichemical Pulp Mills. This action is contingent upon ADEM including, in title V permits, terms and conditions that are no less stringent than the Federal standard. In addition, the requirement applicable to the source remains the Federal section 112 requirement until EPA has approved the alternative permit terms and conditions and the final title V permit is issued.

(2) Alaska. (i) The following table lists the specific part 63 standards that have been delegated unchanged to the Alaska Department of Environmental Conservation. The (X) symbol is used to indicate each subpart that has been delegated.

Delegation Status for Part 63 Standards—Alaska

Subpart		Alaska Department of Environmental Conservation (1/18/97)
A	General Provisions 1	X
D	Early Reductions	X
F	HON-SOCMI
G	HON-Process Vents
H	HON-Equipment Leaks
I	HON-Negotiated Leaks
L	Coke Oven Batteries
M	Perc Dry Cleaning	X
N	Chromium Electroplating	X 2
O	Ethylene Oxide Sterilizers
Q	Industrial Process Cooling Towers	X
R	Gasoline Distribution	X
S	Pulp and Paper
T	Halogenated Solvent Cleaning	X
U	Polymers and Resins I
W	Polymers and Resins II-Epoxy
X	Secondary Lead Smelting
Y	Marine Tank Vessel Loading	X
CC	Petroleum Refineries	X
DD	Off-Site Waste and Recovery	X
EE	Magnetic Tape Manufacturing
GG	Aerospace Manufacturing & Rework
II	Shipbuilding and Ship Repair	X
JJ	Wood Furniture Manufacturing Operations	X
KK	Printing and Publishing Industry	X
LL	Primary Aluminum
OO	Tanks—Level 1
PP	Containers
QQ	Surface Impoundments
RR	Individual Drain Systems
VV	Oil-Water Separators and Organic-Water Separators
EEE	Hazardous Waste Combustors
JJJ	Polymers and Resins IV

¹ Authorities which are not delegated include: 40 CFR 63.6(g); 63.6(h)(9); 63.7(e)(2)(ii) and (f) for approval of major alternatives to test methods; 63.8(f) for approval of major alternatives to monitoring; 63.10(f); and all authorities identified in the subparts (i.e., under “Delegation of Authority”) that cannot be delegated. For definitions of minor, intermediate, and major alternatives to test methods and monitoring, see memorandum from John Seitz, Office of Air Quality Planning and Standards, dated July, 10, 1998, entitled, “Delegation of 40 CFR Part 63 General Provisions Authorities to State and Local Air Pollution Control Agencies.”

² Alaska received delegation for Subpart N (Chromium Electroplating) as it applies to sources required to obtain an operating permit under Alaska's regulations. EPA retains the authority for implementing and enforcing Subpart N for area source chromium electroplating and anodizing operations which have been exempted from Part 70 permitting in 40 CFR 63.340(e)(1).

(ii) [Reserved]

(3) Arizona. (i) The following table lists the specific Part 63 standards that have been delegated unchanged to the air pollution control agencies in the State of Arizona. The (X) symbol is used to indicate each category that has been delegated.

Table 3 to Paragraph (a)(3)(i)—Delegation Status for Part 63 Standards—Arizona

Subpart	Description	ADEQ 1	MCAQD 2	PDEQ 3	PCAQCD 4	GRIC 5
A	General Provisions	X	X	X	X	X
F	Synthetic Organic Chemical Manufacturing Industry	X	X	X	X	X
G	Synthetic Organic Chemical Manufacturing Industry: Process Vents, Storage Vessels, Transfer Operations, and Wastewater	X	X	X	X	X
H	Organic Hazardous Air Pollutants: Equipment Leaks	X	X	X	X	X
I	Organic Hazardous Air Pollutants: Certain Processes Subject to the Negotiated Regulation for Equipment Leaks	X	X	X	X	X
J	Polyvinyl Chloride and Copolymers Production	X	X	X		X
L	Coke Oven Batteries	X	X	X	X	X
M	Perchloroethylene Dry Cleaning	X	X	X	X	X
N	Hard and Decorative Chromium Electroplating and Chromium Anodizing Tanks	X	X	X	X	X
O	Ethylene Oxide Sterilization Facilities	X	X	X	X	X
Q	Industrial Process Cooling Towers	X	X	X	X	X
R	Gasoline Distribution Facilities	X	X	X	X	X
S	Pulp and Paper	X	X	X		X
T	Halogenated Solvent Cleaning	X	X	X	X	X
U	Group I Polymers and Resins	X	X	X	X	X
W	Epoxy Resins Production and Non-Nylon Polyamides Production	X	X	X	X	X
X	Secondary Lead Smelting	X		X	X	X
Y	Marine Tank Vessel Loading Operations		X			X
AA	Phosphoric Acid Manufacturing Plants	X	X	X		X
BB	Phosphate Fertilizers Production Plants	X	X	X		X
CC	Petroleum Refineries	X		X	X	X
DD	Off-Site Waste and Recovery Operations	X	X	X	X	X
EE	Magnetic Tape Manufacturing Operations	X	X	X	X	X
GG	Aerospace Manufacturing and Rework Facilities	X	X	X	X	X
HH	Oil and Natural Gas Production Facilities	X	X	X		X
II	Shipbuilding and Ship Repair (Surface Coating)					X
JJ	Wood Furniture Manufacturing Operations	X	X	X	X	X
KK	Printing and Publishing Industry	X	X	X	X	X
LL	Primary Aluminum Reduction Plants	X	X	X		X
MM	Chemical Recovery Combustion Sources at Kraft, Soda, Sulfite, and Stand-Alone Semichemical Pulp Mills	X	X	X		X
NN	Wool Fiberglass Manufacturing at Area Sources		X
OO	Tanks—Level 1	X	X	X	X	X
PP	Containers	X	X	X	X	X
QQ	Surface Impoundments	X	X	X	X	X
RR	Individual Drain Systems	X	X	X	X	X
SS	Closed Vent Systems, Control Devices, Recovery Devices and Routing to a Fuel Gas System or a Process	X	X	X		X
TT	Equipment Leaks—Control Level 1	X	X	X		X
UU	Equipment Leaks—Control Level 2	X	X	X		X
VV	Oil-Water Separators and Organic-Water Separators	X	X	X	X	X
WW	Storage Vessels (Tanks)—Control Level 2	X	X	X		X
XX	Ethylene Manufacturing Process Units: Heat Exchange Systems and Waste Operations	X	X	X		X
YY	Generic MACT Standards	X	X	X		X
CCC	Steel Pickling	X	X	X		X
DDD	Mineral Wool Production	X	X	X		X
EEE	Hazardous Waste Combustors	X	X	X		X
GGG	Pharmaceuticals Production	X	X	X		X
HHH	Natural Gas Transmission and Storage Facilities	X	X	X		X
III	Flexible Polyurethane Foam Production	X	X	X		X
JJJ	Group IV Polymers and Resins	X	X	X	X	X
LLL	Portland Cement Manufacturing Industry	X		X		X
MMM	Pesticide Active Ingredient Production	X	X	X		X
NNN	Wool Fiberglass Manufacturing	X	X	X		X
OOO	Manufacture of Amino/Phenolic Resins	X	X	X		X
PPP	Polyether Polyols Production	X	X	X		X
QQQ	Primary Copper Smelting	X		X		X
RRR	Secondary Aluminum Production	X	X	X		X
TTT	Primary Lead Smelting	X		X		X
UUU	Petroleum Refineries: Catalytic Cracking, Catalytic Reforming, and Sulfur Recovery Units	X		X		X
VVV	Publicly Owned Treatment Works	X	X	X		X
XXX	Ferroalloys Production	X	X	X		X
AAAA	Municipal Solid Waste Landfills	X	X	X		X
CCCC	Manufacturing of Nutritional Yeast	X	X	X		X
DDDD	Plywood and Composite Wood Products	X	X	X		X
EEEE	Organic Liquids Distribution (non-gasoline)	X	X	X		X
FFFF	Miscellaneous Organic Chemical Manufacturing	X	X	X		X
GGGG	Solvent Extraction for Vegetable Oil Production	X	X	X		X
HHHH	Wet-Formed Fiberglass Mat Production	X	X	X		X
IIII	Surface Coating of Automobiles and Light-Duty Trucks	X	X			X
JJJJ	Paper and Other Web Coating	X	X	X		X
KKKK	Surface Coating of Metal Cans	X	X	X		X
MMMM	Miscellaneous Metal Parts and Products	X	X	X		X
NNNN	Large Appliances	X	X	X		X
OOOO	Printing, Coating, and Dyeing of Fabrics and Other Textiles	X	X	X		X
PPPP	Surface Coating of Plastic Parts and Products	X	X			X
QQQQ	Wood Building Products	X	X	X		X
RRRR	Surface Coating of Metal Furniture	X	X	X		X
SSSS	Surface Coating of Metal Coil	X	X	X		X
TTTT	Leather Finishing Operations	X	X	X		X
UUUU	Cellulose Products Manufacturing	X	X	X		X
VVVV	Boat Manufacturing	X	X	X		X
WWWW	Reinforced Plastics Composites Production	X	X	X		X
XXXX	Tire Manufacturing	X	X	X		X
YYYY	Stationary Combustion Turbines	X	X	X		X
ZZZZ	Stationary Reciprocating Internal Combustion Engines	X	X			X
AAAAA	Lime Manufacturing Plants	X	X	X		X
BBBBB	Semiconductor Manufacturing	X	X	X		X
CCCCC	Coke Oven: Pushing, Quenching and Battery Stacks	X	X	X		X
DDDDD	Industrial, Commercial, and Institutional Boiler and Process Heaters	X	X			X
EEEEE	Iron and Steel Foundries	X	X	X		X
FFFFF	Integrated Iron and Steel	X	X	X		X
GGGGG	Site Remediation	X	X	X		X
HHHHH	Miscellaneous Coating Manufacturing	X	X	X		X
IIIII	Mercury Emissions from Mercury Cell Chlor-Alkali Plants	X	X	X		X
JJJJJ	Brick and Structural Clay Products Manufacturing	X	X	X		X
KKKKK	Clay Ceramics Manufacturing	X	X	X		X
LLLLL	Asphalt Roofing and Processing	X	X	X		X
MMMMM	Flexible Polyurethane Foam Fabrication Operation	X	X	X		X
NNNNN	Hydrochloric Acid Production	X	X	X		X
PPPPP	Engine Test Cells/Stands	X	X	X		X
QQQQQ	Friction Products Manufacturing	X	X	X		X
RRRRR	Taconite Iron Ore Processing	X	X	X		X
SSSSS	Refractory Products Manufacturing	X	X	X		X
TTTTT	Primary Magnesium Refining	X	X	X		X
UUUUU	Coal and Oil-Fired Electric Utility Steam Generating Units			X
WWWWW	Hospital Ethylene Oxide Sterilizers		X	X
YYYYY	Area Sources: Electric Arc Furnace Steelmaking Facilities		X	X
ZZZZZ	Iron and Steel Foundries Area Sources		X	X
BBBBBB	Gasoline Distribution Bulk Terminals, Bulk Plants, and Pipeline Facilities		X	X
CCCCCC	Gasoline Dispensing Facilities		X	X
DDDDDD	Polyvinyl Chloride and Copolymers Production Area Sources		X	X
EEEEEE	Primary Copper Smelting Area Sources			X
FFFFFF	Secondary Copper Smelting Area Sources			X
GGGGGG	Primary Nonferrous Metals Area Sources—Zinc, Cadmium, and Beryllium		X	X
HHHHHH	Paint Stripping and Miscellaneous Surface Coating Operations at Area Sources		X	X
JJJJJJ	Industrial, Commercial, and Institutional Boilers and Process Heaters—Area Sources		X	X
LLLLLL	Acrylic and Modacrylic Fibers Production Area Sources		X	X
MMMMMM	Carbon Black Production Area Sources		X	X
NNNNNN	Chemical Manufacturing Area Sources: Chromium Compounds		X	X
OOOOOO	Flexible Polyurethane Foam Production and Fabrication Area Sources		X	X
PPPPPP	Lead Acid Battery Manufacturing Area Sources		X	X
QQQQQQ	Wood Preserving Area Sources		X	X
RRRRRR	Clay Ceramics Manufacturing Area Sources		X	X
SSSSSS	Glass Manufacturing Area Sources		X	X
TTTTTT	Secondary Nonferrous Metals Processing Area Sources		X	X
VVVVVV	Chemical Manufacturing Industry—Area Sources		X	X
WWWWWW	Area Source Standards for Plating and Polishing Operations		X	X
XXXXXX	Area Source Standards for Nine Metal Fabrication and Finishing Source Categories		X	X
YYYYYY	Area Sources: Ferroalloys Production Facilities		X	X
ZZZZZZ	Area Source Standards for Aluminum, Copper, and Other Nonferrous Foundries		X	X
AAAAAAA	Asphalt Processing and Asphalt Roofing Manufacturing—Area Sources		X	X
BBBBBBB	Chemical Preparations Industry—Area Sources		X	X
CCCCCCC	Paint and Allied Products Manufacturing—Area Sources		X	X
DDDDDDD	Prepared Feeds Manufacturing—Area Sources		X	X
EEEEEEE	Gold Mine Ore Processing and Production—Area Sources		X	X
HHHHHHH	Polyvinyl Chloride and Copolymers Production		X	X

¹ Arizona Department of Environmental Quality.

² Maricopa County Air Quality Department.

³ Pima County Department of Environmental Quality.

⁴ Pinal County Air Quality Control District.

⁵ Gila River Indian Community Department of Environmental Quality. This table includes the GRIC DEQ only for purposes of identifying all state, local, and tribal agencies responsible for implementing part 63 standards within the geographical boundaries of the State of Arizona and does not establish any state regulatory authority in Indian country.

(ii) [Reserved]

(4) Arkansas. The following table lists the specific standards under this part that have been delegated unchanged to the Arkansas Department of Energy and Environment, Division of Environmental Quality (DEQ) for all sources subject to the Arkansas Title V operating permit program approved by EPA under section 502 of the Clean Air Act. The “X” symbol is used to indicate each subpart that has been delegated. The delegations are subject to all of the conditions and limitations set forth in Federal law, regulations, policy, guidance, determinations, and the Memorandum of Agreement, dated September 17, 2014, entered into between the DEQ and the U.S. Environmental Protection Agency, Region 6 (hereinafter “EPA”) regarding section 112, Clean Air Act Implementation. Some authorities cannot be delegated and are retained by the EPA. These include certain General Provisions authorities and specific parts of some standards. DEQ's authority to implement and enforce a delegated standard under this part is effective when the standard is incorporated into the source's Title V Operating Permit. Any amendments made to these rules after July 21, 2020, are not delegated.

Delegation Status for Part 63 Standards—State of Arkansas ¹

Subpart	Source category	DEQ 2
A	General Provisions	X
F	Hazardous Organic NESHAP (HON)—Synthetic Organic Chemical Manufacturing Industry (SOCMI)	X
G	HON—SOCMI Process Vents, Storage Vessels, Transfer Operations and Wastewater	X
H	HON—Equipment Leaks	X
I	HON—Certain Processes Negotiated Equipment Leak Regulation	X
J	Polyvinyl Chloride and Copolymers Production	( 3)
K	(Reserved)
L	Coke Oven Batteries	X
M	Perchloroethylene Dry Cleaning	X
N	Chromium Electroplating and Chromium Anodizing Tanks	X
O	Ethylene Oxide Sterilizers	X
P	(Reserved)
Q	Industrial Process Cooling Towers	X
R	Gasoline Distribution	X
S	Pulp and Paper Industry	X
T	Halogenated Solvent Cleaning	X
U	Group I Polymers and Resins	X
V	(Reserved)
W	Epoxy Resins Production and Non-Nylon Polyamides Production	X
X	Secondary Lead Smelting	X
Y	Marine Tank Vessel Loading	X
Z	(Reserved)
AA	Phosphoric Acid Manufacturing Plants	X
BB	Phosphate Fertilizers Production Plants	X
CC	Petroleum Refineries	X
DD	Off-Site Waste and Recovery Operations	X
EE	Magnetic Tape Manufacturing	X
FF	(Reserved)
GG	Aerospace Manufacturing and Rework Facilities	X
HH	Oil and Natural Gas Production Facilities	X
II	Shipbuilding and Ship Repair Facilities	X
JJ	Wood Furniture Manufacturing Operations	X
KK	Printing and Publishing Industry	X
LL	Primary Aluminum Reduction Plants	X
MM	Chemical Recovery Combustion Sources at Kraft, Soda, Sulfide, and Stand-Alone Semichemical Pulp Mills	X
NN	Wool Fiberglass Manufacturing at Area Sources
OO	Tanks-Level 1	X
PP	Containers	X
QQ	Surface Impoundments	X
RR	Individual Drain Systems	X
SS	Closed Vent Systems, Control Devices, Recovery Devices and Routing to a Fuel Gas System or a Process	X
TT	Equipment Leaks—Control Level 1	X
UU	Equipment Leaks—Control Level 2 Standards	X
VV	Oil—Water Separators and Organic—Water Separators	X
WW	Storage Vessels (Tanks)—Control Level 2	X
XX	Ethylene Manufacturing Process Units Heat Exchange Systems and Waste Operations	X
YY	Generic Maximum Achievable Control Technology Standards	X
ZZ-BBB	(Reserved)
CCC	Steel Pickling—HCI Process Facilities and Hydrochloric Acid Regeneration	X
DDD	Mineral Wool Production	X
EEE	Hazardous Waste Combustors	X
FFF	(Reserved)
GGG	Pharmaceuticals Production	X
HHH	Natural Gas Transmission and Storage Facilities	X
III	Flexible Polyurethane Foam Production	X
JJJ	Group IV Polymers and Resins	X
KKK	(Reserved)
LLL	Portland Cement Manufacturing	X
MMM	Pesticide Active Ingredient Production	X
NNN	Wool Fiberglass Manufacturing	X
OOO	Amino/Phenolic Resins	X
PPP	Polyether Polyols Production	X
QQQ	Primary Copper Smelting	X
RRR	Secondary Aluminum Production	X
SSS	(Reserved)
TTT	Primary Lead Smelting	X
UUU	Petroleum Refineries—Catalytic Cracking Units, Catalytic Reforming Units and Sulfur Recovery Plants	X
VVV	Publicly Owned Treatment Works (POTW)	X
WWW	(Reserved)
XXX	Ferroalloys Production: Ferromanganese and Silicomanganese	X
AAAA	Municipal Solid Waste Landfills	X
CCCC	Nutritional Yeast Manufacturing	X
DDDD	Plywood and Composite Wood Products	4 X
EEEE	Organic Liquids Distribution	X
FFFF	Misc. Organic Chemical Production and Processes (MON)	X
GGGG	Solvent Extraction for Vegetable Oil Production	X
HHHH	Wet Formed Fiberglass Mat Production	X
IIII	Auto & Light Duty Truck (Surface Coating)	X
JJJJ	Paper and other Web (Surface Coating)	X
KKKK	Metal Can (Surface Coating)	X
MMMM	Misc. Metal Parts and Products (Surface Coating)	X
NNNN	Surface Coating of Large Appliances	X
OOOO	Fabric Printing, Coating, and Dyeing	X
PPPP	Surface Coating of Plastic Parts and Products	X
QQQQ	Surface Coating of Wood Building Products	X
RRRR	Surface Coating of Metal Furniture	X
SSSS	Surface Coating of Metal Coil	X
TTTT	Leather Finishing Operations	X
UUUU	Cellulose Products Manufacturing	X
VVVV	Boat Manufacturing	X
WWWW	Reinforced Plastic Composites Production	X
XXXX	Rubber Tire Manufacturing	X
YYYY	Stationary Combustion Turbines	X
ZZZZ	Reciprocating Internal Combustion Engines (RICE)	X
AAAAA	Lime Manufacturing Plants	X
BBBBB	Semiconductor Manufacturing	X
CCCCC	Coke Ovens: Pushing, Quenching and Battery Stacks	X
DDDDD	Industrial/Commercial/Institutional Boilers and Process Heaters	5 X
EEEEE	Iron and Steel Foundries	X
FFFFF	Integrated Iron and Steel	X
GGGGG	Site Remediation	X
HHHHH	Miscellaneous Coating Manufacturing	X
IIIII	Mercury Cell Chlor-Alkali Plants	X
JJJJJ	Brick and Structural Clay Products Manufacturing	6 X
KKKKK	Clay Ceramics Manufacturing	6 X
LLLLL	Asphalt Roofing and Processing	X
MMMMM	Flexible Polyurethane Foam Fabrication Operation	X
NNNNN	Hydrochloric Acid Production, Fumed Silica Production	X
OOOOO	(Reserved)
PPPPP	Engine Test Facilities	X
QQQQQ	Friction Products Manufacturing	X
RRRRR	Taconite Iron Ore Processing	X
SSSSS	Refractory Products Manufacture	X
TTTTT	Primary Magnesium Refining	X
UUUUU	Coal and Oil-Fired Electric Utility Steam Generating Units	7 X
VVVVV	(Reserved)
WWWWW	Hospital Ethylene Oxide Sterilizers
XXXXX	(Reserved)
YYYYY	Electric Arc Furnace Steelmaking Area Sources	X
ZZZZZ	Iron and Steel Foundries Area Sources
AAAAAA	(Reserved)
BBBBBB	Gasoline Distribution Bulk Terminals, Bulk Plants, and Pipeline Facilities
CCCCCC	Gasoline Dispensing Facilities
DDDDDD	Polyvinyl Chloride and Copolymers Production Area Sources
EEEEEE	Primary Copper Smelting Area Sources	X
FFFFFF	Secondary Copper Smelting Area Sources	X
GGGGGG	Primary Nonferrous Metals Area Sources: Zinc, Cadmium, and Beryllium	X
HHHHHH	Paint Stripping and Miscellaneous Surface Coating Operations at Area Sources
IIIIII	(Reserved)
JJJJJJ	Industrial, Commercial, and Institutional Boilers: Area Sources
KKKKKK	(Reserved)
LLLLLL	Acrylic and Modacrylic Fibers Production Area Sources
MMMMMM	Carbon Black Production Area Sources	X
NNNNNN	Chemical Manufacturing Area Sources: Chromium Compounds	X
OOOOOO	Flexible Polyurethane Foam Production and Fabrication Area Sources
PPPPPP	Lead Acid Battery Manufacturing Area Sources
QQQQQQ	Wood Preserving Area Sources
RRRRRR	Clay Ceramics Manufacturing Area Sources
SSSSSS	Glass Manufacturing Area Sources	X
TTTTTT	Secondary Nonferrous Metals Processing Area Sources
UUUUUU	(Reserved)
VVVVVV	Chemical Manufacturing Area Sources	X
WWWWWW	Plating and Polishing Operations Area Sources
XXXXXX	Nine Metal Fabrication and Finishing Categories Area Sources
YYYYYY	Ferroalloys Production Facilities Area Sources
ZZZZZZ	Aluminum, Copper, and Other Nonferrous Foundries Area Sources
AAAAAAA	Asphalt Processing and Asphalt Roofing Manufacturing Area Sources
BBBBBBB	Chemical Preparations Industry Area Sources
CCCCCCC	Paints and Allied Products Manufacturing Area Sources
DDDDDDD	Prepared Feeds Manufacturing Area Sources
EEEEEEE	Gold Mine Ore Processing and Production Area Sources
FFFFFFF	Reserved
GGGGGGG	Reserved
HHHHHHH	Polyvinyl Chloride and Copolymers Production	X

¹ Program delegated to Arkansas Department of Energy and Environment, Division of Environmental Quality (DEQ).

² Authorities which may not be delegated include: § 63.6(g), Approval of Alternative Non-Opacity Emission Standards; § 63.6(h)(9), Approval of Alternative Opacity Standards; § 63.7(e)(2)(ii) and (f), Approval of Major Alternatives to Test Methods; § 63.8(f), Approval of Major Alternatives to Monitoring; § 63.10(f), Approval of Major Alternatives to Recordkeeping and Reporting; and all authorities identified in the subparts (e.g., under “Delegation of Authority”) that cannot be delegated.

³ This subpart was vacated and remanded to EPA by the United States Court of Appeals for the District of Columbia Circuit. See, Mossville Environmental Action Network v. EPA, 370 F. 3d 1232 (D.C. Cir. 2004). Because of the DC Court's holding, this subpart is not delegated to DEQ at this time.

⁴ This subpart was issued a partial vacatur on October 29, 2007 (72 FR 61060), by the United States Court of Appeals for the District of Columbia Circuit.

⁵ Final rule. See 76 FR 15608 (March 21, 2011), as amended at 78 FR 7138 (January 31, 2013); 80 FR 72807 (November 20, 2015).

⁶ Final promulgated rule adopted by the EPA. See 80 FR 65470 (October 26, 2015). Note that subpart KKKKK of this part was amended in response to a petition for reconsideration of the final rule. See 84 FR 58601 (November 1, 2019).

⁷ Initial final rule. See 77 FR 9304 (February 16, 2012), as amended 81 FR 20172 (April 6, 2016). Final supplemental finding that it is appropriate and necessary to regulate hazardous air pollutant (HAP) emissions from coal- and oil-fired electric utility steam generating units (EUSGU). See 81 FR 24420 (April 25, 2016).

(5) California—(i)(A) California major sources. Except as described in paragraph (ii) below, each local air pollution control agency in California has delegation for national emission standards promulgated in this part as they apply to major sources.

(B) California area sources. Except as described in paragraph (a)(5)(ii) of this section, the local agencies listed below also have delegation for national emission standards promulgated in this part as they apply to area sources:

(1) Amador County Air Pollution Control District.

(2) Antelope Valley Air Quality Management District.

(3) Butte County Air Quality Management District.

(4) Kern County Air Pollution Control District.

(5) Mendocino County Air Quality Management District.

(6) Mojave Desert Air Quality Management District.

(7) Monterey Bay Unified Air Pollution Control District.

(8) San Diego County Air Pollution Control District.

(9) San Joaquin Valley Unified Air Pollution Control District, only for standards promulgated in this part and incorporated by reference in district Rule 4002, amended on May 20, 2004.

(10) San Luis Obispo County Air Pollution Control District.

(11) Santa Barbara County Air Pollution Control District.

(12) Ventura County Air Pollution Control District.

(13) Yolo-Solano Air Quality Management District.

(ii) California approvals other than straight delegation. Affected sources must comply with the California Regulatory Requirements Applicable to the Air Toxics Program, November 16, 2010, (incorporated by reference as specified in § 63.14) as described as follows:

(A) The material incorporated in Chapter 1 of the California Regulatory Requirements Applicable to the Air Toxics Program (California Code of Regulations Title 17, sections 93109, 93109.1, and 93109.2) pertains to the perchloroethylene dry cleaning source category in the State of California, and has been approved under the procedures in § 63.93 to be implemented and enforced in place of subpart M—National Perchloroethylene Air Emission Standards for Dry Cleaning Facilities, as it applies to area sources only, as defined in § 63.320(h).

(1) Authorities not delegated.

(i) California is not delegated the Administrator's authority to implement and enforce California Code of Regulations Title 17, section 93109, in lieu of those provisions of subpart M which apply to major sources, as defined in § 63.320(g). Dry cleaning facilities which are major sources remain subject to subpart M.

(ii) California is not delegated the Administrator's authority of § 63.325 to determine equivalency of emissions control technologies. Any source seeking permission to use an alternative means of emission limitation, under sections 93109(d)(27) or (38), or (i)(3)(A)(2), Title 17 of the California Code of Regulations, must also receive approval from the Administrator before using such alternative means of emission limitation for the purpose of complying with section 112 of the Clean Air Act.

(iii) This delegation does not extend to the provisions regarding California's enforcement authorities or its collection of fees as described in Sections 93109.1(c) or 93109.2(c) and (d), Title 17 of the California Code of Regulations. Approval of the California Code of Regulations, Title 17, sections 93109, 93109.1, and 93109.2 does not in any way limit the enforcement authorities, including the penalty authorities, of the Clean Air Act.

(B) [Reserved]

(C) The material incorporated in Chapter 3 of the California Regulatory Requirements Applicable to the Air Toxics Program (South Coast Air Quality Management District Rule 1421) pertains to the perchloroethylene dry cleaning source category in the South Coast Air Quality Management District, and has been approved under the procedures in § 63.93 to be implemented and enforced in place of Subpart M—National Perchloroethylene Air Emission Standards for Dry Cleaning Facilities, as it applies to area sources only, as defined in § 63.320(h).

(1) Authorities not delegated.

(i) South Coast Air Quality Management District is not delegated the Administrator's authority to implement and enforce Rule 1421 in lieu of those provisions of Subpart M which apply to major sources, as defined in § 63.320(g). Dry cleaning facilities which are major sources remain subject to Subpart M.

(ii) South Coast Air Quality Management District is not delegated the Administrator's authority of § 63.325 to determine equivalency of emissions control technologies. Any source seeking permission to use an alternative means of emission limitation, under sections (c)(17), (d)(3)(A)(v), (d)(4)(B)(ii)(III), and (j) of Rule 1421, must also receive approval from the Administrator before using such alternative means of emission limitation for the purpose of complying with section 112.

(D) [Reserved]

(E) The material incorporated in Chapter 5 of the California Regulatory Requirements Applicable to the Air Toxics Program (California Code of Regulations, Title 17, section 93102) pertains to the chromium electroplating and anodizing source category in the State of California, and has been approved under the procedures in § 63.93 to be implemented and enforced in place of subpart N—National Emission Standards for Chromium Emissions from Hard and Decorative Chromium Electroplating and Chromium Anodizing Tanks.