§63.50 Applicability. (a) General applicability
. (1) The requirements of this section through §63.56 implement section 112(j) of the Clean Air Act (as amended in 1990). The requirements of this section through §63.56 apply in each State beginning on the effective date of an approved title V permit program in such State. The requirements of this section through §63.56 do not apply to research or laboratory activities as defined in §63.51. (2) The requirements of this section through §63.56 apply to: (i) The owner or operator of affected sources within a source category or subcategory under this part that are located at a major source that is subject to an approved title V permit program and for which there is no section 112(d) emission standard in place o n or after the section 112(j) deadline . If title V applicability has been deferred for a source category, then section 112(j) is not applicable for sources in tha t category within that State, local or tribal jurisdiction until those sources become subject to title V permitting requirements; and (ii) Permitting authorities with an approved title V permit program.(b) Relationship to State and local requirements.

Not hing in §§63.50 through 63.56 shall prevent a State or local regulatory agency from imposing more stringent requirements, as a matter of State or local law, than those contained in §§63.50 through 63.56. (c) The procedures in §§63.50 through 63.56 apply fo r each affected source only after its section 112(j) deadline has passed and there is no generally applicable Federal standard governing that source under section 112(d) of the
Act . If a generally applicable Federal standard governing that source is in place , the owner or operator of the affected source and the permitting authority are not required to take any further action to develop an equivalent emission limitation under section 112(j) of the
Act. (d) Any final e quivalent emission limitation for an affected source which is issued by the permitting authority pursuant to §§63.50 through 63.56 prior to promulgation of a generally applicable Federal standard governing that source under section 112(d) of the Act shall be deemed an applicable Federal requirement adopted pursuant to section 112(j) of the Act. Each such equivalent emission limitation shall take effect upon issuance of the permit containing that limitation under section 112(j)(5) of theAct, and shall remain applicable to the source until such

time as it may be revised or supplanted pursuant to the procedures established by §§63.50 through 63.56. Such a final equivalent emission limitation, and all associated requirements adopted pursuant to §63. 52(f)(2), are directly enforceable under Federal law regardless of whether or not any permit in which they may be contained remains in effect. §63.51 Definitions. Terms used in §§63.50 through 63.56 that are not defined in this section have the meaning g iven to them in the Act, or in subpart A of this part. Affected source means the collection of equipment, activities, or both within a single contiguous area and under common control that is in a listed source category or subcategory for which there is no section 112(d) emission standard on or after the section 112(j) deadline , and that is addressed by an applicable MACT emission limitation establishe d pursuant to this subpart. Available information means, for purposes of conducting a MACT floor finding and identifying control technology options under this subpart, any information that is available as of the date on which the first permit

application under this subpart is filed for a source in therelevant source category or subcategory in the State or

jurisdiction; and, pursuant to the requirements of this subpart, is additional relevant information that can be expeditiously provided by the Administrator, is submitted by the applicant or others prior to or during the public comment period on the section 112(j) equivalent emission limitation for that source, or information contained in any of the information sources in paragraphs (1) through ( 8 ) of this definition. (1) A relevant proposed regulation, including all supporting information; (2) Relevant background information documents for a draft or proposed regulation ; (3) Any relevant regulation, information or guidance collected by the Admi nistrator establishing a MACT floor finding and/or MACT determination ; (4) Relevant data and information available from the Clean Air Technology Center developed pursuant to section 112(l)(3) of the Act ; (5) Relevant data and information contained in EPA databases such as the Air Facility Subsystem ; (6) Any additional information that can be expeditiously provided by the Administrator ;(7) Any information provided by applicants in an

application for a permit, permit modification, administrative amendment, or Notice of MACT Approval pursuant to the requirements of this subpart ; and (8) Any additional relevant information provided by the applicant. Control technology means measures, processes, methods, systems, or techniques to limit the emission of hazardous air pollutants including, but not limited to, measures which: (1) Reduce the quantity, or eliminate emissions, of such pollutants through process changes, substitution of materials or other modific ations; (2) Enclose systems or processes to eliminate emissions; (3) Collect, capture, or treat such pollutants when released from a process, stack, storage or fugitive emissions point; (4) Are design, equipment, work practice, or operational standards (in cluding requirements for operator training or certification) as provided in 42 U.S.C. 7412(h); or (5) Are a combination of paragraphs (1) through (4) of this definition.Enhanced review means a review process containing all

administrative steps needed to e nsure that the terms and conditions resulting from the review process can be incorporated using title V permitting procedures. Equivalent emission limitation means an emission limitation, established under section 112(j) of the Act, which is equivalent to the MACT standard that EPA would have promulgated under section 112(d) of the Act. Listed source category or subcategory means a source category or subcategory initially listed pursuant to section 112(c)(1) at 57 FR 31576, 15991 (July 16, 1992).
Max imum achievable control technology (MACT) emission limitation for existing sources means the emission limitation reflecting the maximum degree of reduction in emissions of hazardous air pollutants (including a prohibition on such emissions, where achievabl e) that the Administrator, taking into consideration the cost of achieving such emission reductions, and any non

- air quality health and environmental impacts and energy requirements, determines is achievable by sources in the category or subcategory to whi ch such emission standard applies. This limitation shall not be less stringent than the MACT floor. Maximum achievable control technology (MACT) emission limitation for new sources means the emission limitationwhich is not less stringent than the emissio n limitation

achieved in practice by the best controlled similar source, and which reflects the maximum degree of reduction in emissions of hazardous air pollutants (including a prohibition on such emissions, where achievable) that the Administrator, takin g into consideration the cost of achieving such emission reduction, and any non

- air quality health and environmental impacts and energy requirements, determines is achievable by sources in the category or subcategory to which such emission standard applies
. Maximum Achievable Control Technology (MACT) floor

means: (1) For existing sources: (i) The average emission limitation achieved by the best performing 12 percent of the existing sources in the United States (for which the Administrator has emissions inf ormation), excluding those sources that have, within 18 months before the emission standard is proposed or within 30 months before such standard is promulgated, whichever is later, first achieved a level of emission rate or emission reduction which complie s, or would comply if the source is not subject to such standard, with the lowest achievable emission rate (as defined in section 171 of the Act) applicable to the source category and prevailing at thetime, in the category or subcategory, for categories a nd

subcategories of stationary sources with 30 or more

sources; or (ii) The average emission limitation achieved by the best performing five sources (for which the Administrator has or could reasonably obtain emissions information) in the category or subca tegory, for categories or subcategories with fewer than 30 sources; (2) For new sources, the emission limitation achieved in practice by the best controlled similar source. New affected source means the collection of equipment, activities, or both, that if constructed after the issuance of a section 112(j) permit for the source pursuant to §63.52, is subject to the applicable MACT emission limitation for new sources. Each permit must define the term “new affected source,” which will be the same as the “aff ected source” unless a different collection is warranted based on consideration of factors including: (1) Emission reduction impacts of controlling individual sources versus groups of sources; (2) Cost effectiveness of controlling individual equipment; (3) Flexibility to accommodate common control strategies;(4) Cost/benefits of emissions averaging; (5) Incentives for pollution prevention; (6) Feasibility and cost of controlling processes that share common equipment (e.g., product recovery devices); (7) Fe asibility and cost of monitoring; and (8) Other relevant factors. Permitting authority means the permitting authority as defined in part 70 of this chapter. Research or laboratory activities means activities whose primary purpose is to conduct research and development into new processes and products where such activities are operated under the close supervision of technically trained personnel and are not engaged in the manufacture of products for commercial sale in commerce, except in a de minimis manner; and where the source is not in a source category, specifically addressing research or laboratory activities, that is listed pursuant to section 112(c)(7) of the Act. Section 112(j) deadline means : (1) for a source in the Polyvinyl Chloride and Copolymers Production, Brick and Structural Clay Products Manufacturing, Clay Ceramics Manufacturing, or the Industrial, Commercial and Institutional Boilers and Process Heaters source category, the earlier of [THE DATE90 DAYS AFTER THE PROMULGATION DATE IN THE FEDERAL

REGISTER] or the date by which the source’s permitting authority has requested in writing a section 112(j) permit application containing the information set out in section 63.53(b); or (2) for any other major source in a listed source category or subc ategory, 18 months after the date of a court mandate effectuating the complete vacatur of a section 112(d) rule applicable to such source. Similar source means that equipment or collection of equipment that, by virtue of its structure, operability, type of emissions and volume and concentration of emissions, is substantially equivalent to the new affected source and employs control technology for control of emissions of hazardous air pollutants that is practical for use on the new affected source.
Sour ce category schedule for standards means the schedule for promulgating MACT standards issued pursuant to section 112(e) of the Act. §63.52 Approval process for new and existing affected

sources. (a) Sources subject to section 112(j) as of the section 112 (j) deadline. The requirements of paragraphs (a)(1) of this section apply to major sources that include,as of the section 112(j) deadline, one or more sources in a

category or subcategory for which there is no section 112(d) emission standard in place on or after the section 112(j) deadline . Existing source MACT requirements (including relevant compliance deadlines), as specified in a title V permit issued to the source pursuant to the requirements of the subpart, must apply to such sources. (1) The owner or operator must submit an application for a title V permit or for a revision to an existing title V permit or a pending title V permit meeting the requirements of §63.53( b ) by the section 112(j) deadline unless the owner or operator has submitted a request for 112(g) equivalency determination under paragraph (a)(2) of this section
. (2) The requirements in paragraphs (a)( 2 )(i) through (ii) of this section apply when the owner or operator has obtained a title V permit that incorporates a case

- by

- case MACT determination by the permitting authority under section 112(g) or has submitted a title V permit application for a revision that incorporates a case

-by

- case MACT determination under section 11 2(g), but has not submitted an application for a title V permit revision that addresses the emission limitation requirements of section 112(j).(i) When the owner or operator has a title V permit

that incorporates a case

- by

- case MACT determination by the
p ermitting authority under section 112(g), the owner or operator must submit a request meeting the requirements of §63.53(a) for a title V permit revision within 30 days of the section 112(j) deadline . Using the procedures established in paragraph (e) of this section, the permitting authority must determine whether the emission limitation s adopted pursuant to the prior case

-by

- case MACT determination under section 112(g) are substantially as effective as the emission limitations which the permitting authority would otherwise adopt pursuant to section 112(j) for the source in question. If the permitting authority determines that the emission limitations previously adopted to effectuate section 112(g) are substantially as effective as the emission limitations which the permitting authority would otherwise adopt to effectuate section 112(j) f or the source, then the permitting authority must retain the existing emission limitations in the permit as the emission limitations to effectuate section 112(j). The title V permit applicable to that source must be revised accordingly. If the permitting authority does not retain the existing emission limitations in the permit as the emission limitations to effectuate section 112(j), the MACTrequirements of this subpart are satisfied upon issuance of

a revised title V permit incorporating any additional section 112(j) requirements. (ii) When the owner or operator has submitted a title V permit application that incorporates a case

- by

- case MACT determination by the permitting authority under section 112(g), but has not received the permit incorporating the section 112(g) requirements, the owner or operator must continue to pursue a title V permit that addresses the emission limitation requirements of section 112(g). Within 30 days of issuance of that title V permit, the owner or operator must submit an appl ication meeting the requirements of §63.53(a) for an equivalency determination
. Using the procedures established in paragraph (e) of this section, the permitting authority must determine whether the emission limitati ons adopted pursuant to the prior

case - by

- case MACT determination under section 112(g) are substantially as effective as the emission limitations which the permitting authority would otherwise adopt pursuant to section 112(j) for the source in question. I f the permitting authority determines that the emission limitations previously adopted to effectuate section 112(g) are substantially as effective as the emission limitations which the permitting authority would otherwise adopt toeffectuate section 112(j) for the source, then the

permitting authority must retain the existing emission limitations in the permit as the emission limitations to effectuate section 112(j). The title V permit applicable to that source must be revised accordingly. If the permitti ng authority does not retain the existing emission limitations in the permit as the emission limitations to effectuate section 112(j), the MACT requirements of this subpart are satisfied upon issuance of a revised title V permit incorporating any additiona l section 112(j) requirements. (b) Sources that become subject to section 112(j) after the section 112(j) deadline and that do not have a title V permit addressing section 112(j) requirements. The requirements of paragraphs (b)(1) through (4) of this

sec tion apply to sources that do not meet the criteria in paragraph (a) of this section on the section 112(j) deadline and are, therefore, not subject to section 112(j) on that date, but where events occur subsequent to the section 112(j) deadline that would bring the source under the requirements of this subpart, and the source does not have a title V permit that addresses the requirements of section 112(j).(1) When one or more sources in a category or

subcategory subject to the requirements of this subpart are installed at a major source, or result in the source becoming a major source due to the installation, and the installation does not invoke section 112(g) requirements, the owner or operator must submit an application meeting the requirements of §63.53( b ) within 30 days of startup of the source. This application shall be reviewed using the procedures established in paragraph (e) of this section. Existing source MACT requirements (including relevant compliance deadlines), as specified in a title V permi t issued pursuant to the requirements of this subpart, shall apply to such sources. (2) The requirements in this paragraph apply when one or more sources in a category or subcategory subject to this subpart are installed at a major source, or result in the source becoming a major source due to the installation, and the installation does require emission limitations to be established and permitted under section 112(g), and the owner or operator has not submitted an application for a title V permit revision t hat addresses the emission limitation requirements of section 112(j). In this case, the owner or operator must apply for and obtain a title V permit that addresses the emission limitation requirementsof section 112(g). Within 30 days of issuance of that

title V permit, the owner or operator must submit a request meeting the requirements of §63.53(a) for an equivalency determination . Using the procedures established in paragraph (e) of this section, t he permitting authority must determine whether the emission limitations adopted pursuant to the prior case

-by

- case MACT determination under section 112(g) are substantially as effective as the emission limitations which the permitting authority would otherwise adopt pursuant to section 112(j) for the source in question. If the permitting authority determines that the emission limitations previously adopted to effectuate section 112(g) are substantially as effective as the emission limitations which the permitting authority would otherwise adopt to effectuate section 112(j) for the source, then the permitting authority must retain the existing emission limitations in the permit as the emission limitations to effectuate section 112(j). The title V permit app licable to that source must be revised accordingly. If the permitting authority does not retain the existing emission limitations in the permit as the emission limitations to effectuate section 112(j), the MACT requirements of this subpart are satisfied upon issuance ofa revised title V permit incorporating any additional

section 112(j) requirements. (3) The owner or operator of an area source that, due to a relaxation in any federally enforceable emission limitation (such as a restriction on hours of ope ration), increases its potential to emit hazardous air pollutants such that the source becomes a major source that is subject to this subpart, must submit an application meeting the requirements of §63.53( b ) for a title V permit or for an application for a title V permit revision within 30 days after the date that such source becomes a major source. This application must be reviewed using the procedures established in paragraph (e) of this section. Existing source MACT requirements (including relevant comp liance deadlines), as specified in a title V permit issued pursuant to the requirements of this subpart, must apply to such sources. (4) On or after April 5, 2002, if the Administrator establishes a lesser quantity emission rate under section 112(a)(1) of the Act that results in an area source becoming a major source that is subject to this subpart, then the owner or operator of such a major source must submit an application meeting the requirements of §63.53( b ) for a title V permit or for a change to an e xisting title Vpermit or pending title V permit on or before the date 6

months after the date that such source becomes a major source. Existing source MACT requirements (including relevant compliance deadlines), as specified in a title V permit issued pu rsuant to the requirements of this subpart, shall apply to such sources. (c) Sources that have a title V permit addressing section 112(j) requirements. The requirements of paragraphs (c)(1) and (2) of this section apply to major

sources within a listed so urce category or subcategory for which there is no section 112(d) emission standard in place on or after the section 112(j) deadline , and the owner or operator has a permit meeting the section 112(j) requirements, and where changes occur at the major source to equipment, activities, or both, subsequent to the section 112(j) deadline. (1) If the tit le V permit already provides the appropriate requirements that address the events that occur under paragraph (c) of this section subsequent to the section 112(j) deadline, then the source must comply with the applicable new source MACT or existing source MACT requirements as specified in the permit, and the section 112(j) requirements are thus satisfied.(2) If the title V permit does not contain the

appropriate requirements that address the events that occur under paragraph (c) of this section subsequent t o the section 112(j) deadline, then the owner or operator must submit an application for a revision to the existing title V permit that meets the requirements of §63.53( b ). The application must be submitted within 30 days of beginning construction and mu st be reviewed using the procedures established in paragraph (e) of this section. Existing source MACT requirements (including relevant compliance deadlines), as specified in a title V permit issued pursuant to the requirements of this subpart, shall appl y to such sources. (d) Requests for notice of MACT approval. In addition to meeting the requirements of paragraphs (a), (b), and (c) of this section, the owner or operator of a new affected source may submit an application for a Notice of MACT Approval before construction, pursuant to §63.54. (e) Permit application review. (1) Permit applications must be reviewed by the permitting authority according to procedures established in §63.55. The resulting MACT determination must be incorporated into the source's title
V permit according to procedures established under title V,and any other regulations approved under title V in the

jurisdiction in which the affected source is located. (2) As specified in paragraphs (a) and (b) of this section, an owner or operator who has submitted an application meeting the requirements of §63.53(a) may request a determination by the permitting authority of whether emission limitations adopted pursuant to a prior case

-by

case MACT determination under section 112(g) that apply to one or more sources at a major source in a relevant categor y or subcategory are substantially as effective as the emission limitations which the permitting authority would otherwise adopt pursuant to section 112(j) for the source in question. Each request for an equivalency determination under this paragraph (e)(2 ) will be construed in the alternative as a complete application for an equivalent emission limitation under section 112(j). The process for determination by the permitting authority of whether the emission limitations in the prior case

- by

- case MACT determination are substantially as effective as the emission limitations which the permitting authority would otherwise adopt under section 112(j) must include the opportunity for full public, EPA, and a ffected State review prior to a final determination. If the permitting authority determines that the emission limitations in theprior case

- by

- case MACT determination are substantially as

effective as the emission limitations which the permitting authorit y would otherwise adopt under section 112(j), then the permitting authority must adopt the existing emission limitations in the permit as the emission limitations to effectuate section 112(j) for the source in question. If more than 3 years remain on the current title V permit, the owner or operator must submit an application for a title V permit revision to make any conforming changes in the permit required to adopt the existing emission limitations as the section 112(j) MACT emission limitations. If les s than 3 years remain on the current title V permit, any required conforming changes must be made when the permit is renewed. If the permitting authority determines that the emission limitations in the prior case

-by

- case MACT determination under section 1 12(g) are not substantially as effective as the emission limitations which the permitting authority would otherwise adopt for the source in question under section 112(j), the permitting authority must make a new MACT determination and adopt a title V permi t incorporating an appropriate equivalent emission limitation under section 112(j). Such a determination constitutes final action for purposes of judicial review under 40 CFR70.4(b)(3)(x) and corresponding State title V program

provisions. (3) Within 60 days of submittal of the permit application, the permitting authority must notify the owner or operator in writing whether the application is complete or incomplete. The permit application shall be deemed complete on the date it was submitted unless the permitting authority notifies the owner or operator in writing within 60 days of the submittal that the permit application is incomplete. A permit application is complete if it is sufficient to begin processing t he application for a title V permit addressing section 112(j) requirements. In the event that the permitting authority disapproves a permit application or determines that the application is incomplete, the owner or operator must revise and resubmit the application to meet the objections of the permitting authority. The permitting authority must specify a reasonable period in which the owner or operator is required to remedy the deficiencies in the disapproved or incomplete application. This period may no t exceed 6 months from the date the owner or operator is first notified that the application has been disapproved or is incomplete.(4) Following submittal of a permit application, the

permitting authority may request additional information from the owner or operator. The owner or operator must respond to such requests in a timely manner. (5) If the owner or operator has submitted a timely and complete application as required by this section, any failure to have a title V permit address ing section 112(j) requirements shall not be a violation of section 112(j), unless the delay in final action is due to the failure of the applicant to submit, in a timely manner, information required or requested to process the application. Once a complet e application is submitted, the owner or operator shall not be in violation of the requirement to have a title V permit addressing section 112(j) requirements. (f) Permit content. The title V permit must contain an equivalent emission limitation (or limita tions) for the relevant category or subcategory determined on a case

-by

case basis by the permitting authority, or, if the applicable criteria in subpart D of this part are met, the title V permit may contain an alternative emission limitation. For the pu rposes of the preceding sentence, early reductions made pursuant to section 112(i)(5)(A) of the Act must be achieved not later than the date on whichthe relevant standard should have been promulgated

according to the source category schedule for standards
. (1) The title V permit must contain an emission standard or emission limitation that is equivalent to existing source MACT and an emission standard or emission limitation that is equivalent to new source MACT for control of emissions of hazardous air pol lutants. The MACT emission standards or limitations must be determined by the permitting authority and must be based on the degree of emission reductions that can be achieved if the control technologies or work practices are installed, maintained, and ope rated properly. The permit must also specify the affected source and the new affected source. If construction of a new affected source or reconstruction of an affected source commences after a title V permit meeting the requirements of section 112(j) has been issued for the source, the new source MACT compliance dates must apply. (2) The title V permit must specify any notification, operation and maintenance, performance testing, monitoring, and reporting and recordkeeping requirements. In developing the title V permit, the permitting authority must consider and specify the appropriate provisions of subpart A of this part. The title V permit must also include the information in paragraphs (f)(2)(i) through (iii) of this section.(i) In addition to the MAC T emission limitation

required by paragraph (f)(1) of this section, additional emission limits, production limits, operational limits or other terms and conditions necessary to ensure practicable enforceability of the MACT emission limitation. (ii) Compliance certifications, testing, monitoring, reporting and recordkeeping requirements that are consistent with requirements established pursuant to title V and paragraph (h) of this section. (iii) Compliance dates by which the owner or operator must be in comp liance with the MACT emission limitation and all other applicable terms and conditions of the permit. (A) The owner or operator of an affected source subject to the requirements of this subpart must comply with the emission limitation(s) by the date establ ished in the source's title V permit. In no case shall such compliance date be later than 3 years after the issuance of the permit for that source, except where the permitting authority issues a permit that grants an additional year to comply in accordanc e with section 112(i)(3)(B) of the Act, or unless otherwise specified in section 112(i), or in subpart D of this part. (B) The owner or operator of a new affected source, as defined in the title V permit meeting the requirements ofsection 112(j), that is subject to the requirements of this

subpart must comply with a new source MACT level of control immediately upon startup of the new affected source. (g) Permit issuance dates. The permitting authority must issue a title V permit meeting section 112(j)
requ irements within 18 months after submittal of the complete permit application. (h) Enhanced monitoring. In accordance with section 114(a)(3) of the Act, monitoring shall be capable of demonstrating continuous compliance for each compliance period during the applicable reporting period. Such monitoring data shall be of sufficient quality to be used as a basis for directly enforcing all applicable requirements established under this subpart, including emission limitations. (i) MACT emission limitat ions. (1) The owner or operator of affected sources subject to paragraphs (a), (b), and (c) of this section must comply with all requirements of this subpart that are applicable to affected sources, including the compliance date for affected sources establ ished in paragraph (f)(2)(iii)(A) of this section. (2) The owner or operator of new affected sources subject to paragraph (c)(1) of this section must complywith all requirements of this subpart that are applicable

to new affected sources, including the compliance date for new affected sources established in paragraph (f)(2)(iii)(B) of this section. §63.53 Section 112(g) equivalency determination requests and application content for case -by- case MACT determinations. (a) Section 112(g) equivalency determi nation request. A section 112(g) equivalency determination request must contain the information in paragraphs (a)(1) through (4) of this section. (1) The name and address (physical lo cation) of the major source. (2) A brief description of the major source and an identification of the relevant source category. (3) An identification of the types of emission points belonging to the relevant source category. (4) An identification of any af fected sources for which a section 112(g) MACT determination has been made. (b) Permit application. (1) In compiling a permit application, the owner or operator may cross

- reference specific information in any prior submission by the owner or operator to the permitting authority, but in cross

referencing such information the owner or operator may notpresume favorable action on any prior application or

request which is still pending. In compiling a permit application, the owner or operator may also cross

- reference any part of a standard proposed by the Administrator pursuant to section 112(d) of the Act for any category or subcategory which includes sources to which the permit application applies. (2) The permit application for a MACT determination must contain the information in paragraphs (b)(2)(i) through (b)(2)(v i ) of this section. (i) The information required by paragraph (a) of this section if a request for 112(g) equivalency was not previously submitted. (ii) For a new affected source, the anticipated date of startup of operation. (ii i ) Each emission point or group of emission points at the affected source which is part of a category or subcategory for which a permit application is requir ed, and each of the hazardous air pollutants emitted at those emission points. When the Administrator has proposed a standard pursuant to section 112(d) of the Act for a category or subcategory, such information may be limited to those emission points and hazardous air pollutants which would be subject to control under the proposed standard.( iv ) Any existing Federal, State, or local limitations

or requirements governing emissions of hazardous air pollutants from those emission points which ar e part of a category or subcategory for which a permit application is required. ( v) For each identified emission point or group of affected emission points, an identification of control technology in place. (v i ) Any additional emission data or other information specifically requested by the permitting authority. (3) The permit application for a MACT determination may, but is not required to, contain the following information: (i) Recommended emission limitations for the affected source and supp ort information consistent with §63.52(f). The owner or operator may recommend a specific design, equipment, work practice, or operational standard, or combination thereof, as an emission limitation. (ii) A description of the control technologies that woul d be applied to meet the emission limitation including technical information on the design, operation, size, estimated control efficiency and any other information deemed appropriate by the permitting authority, andidentification of the affected sources t o which the control

technologies must be applied. (iii) Relevant parameters to be monitored and frequency of monitoring to demonstrate continuous compliance with the MACT emission limitation over the applicable reporting period. §63.54 Preconstruction review procedures for new affected

sources. The purpose of this section is to describe alternative review processes that the permitti ng authority may use to make a MACT determination for the new affected source. (a) Review process for new affected sources. (1) If the permitting authority requires an owner or operator to obtain or revise a title V permit before construction of the new af fected source, or when the owner or operator chooses to obtain or revise a title V permit before construction, the owner or operator must follow the procedures established under the applicable title V permit program before construction of the new affected source. (2) If an owner or operator is not required to obtain or revise a title V permit before construction of the new affected source (and has not elected to do so), but the new affected source is covered by any preconstruction or preoperation review requirements established pursuant tosection 112(g) of the Act, then the owner or operator must

comply with those requirements in order to ensure that the requirements of section 112(j) and (g) are satisfied. If the new affected source is not covered by secti on 112(g), the permitting authority, in its discretion, may issue a Notice of MACT Approval, or the equivalent, in accordance with the procedures set forth in paragraphs (b) through (f) of this section, or an equivalent permit review process, before construction or operation of the new affected

source. (3) Regardless of the review process, the MACT determination shall be consistent with the principles established in §63.55. The application for a Notice of MACT Approval or a title V permit, permit modificati on, or administrative amendment, whichever is applicable, shall include the documentation required by §63.53. (b) Optional administrative procedures for preconstruction or preoperation review for new affected

sources. The permitting authority may provide f or an enhanced review of section 112(j) MACT determinations for review procedures and compliance requirements equivalent to those set forth in paragraphs (b) through (f) of this section.(1) The permitting authority will notify the owner or

operator in wri ting as to whether the application for a MACT determination is complete or whether additional information is required. (2) The permitting authority will approve an applicant's proposed control technology, or the permitting authority will notify the owner o r operator in writing of its intention to disapprove a control technology. (3) The owner or operator may present in writing, within a time frame specified by the permitting authority, additional information, considerations, or amendments to the application before the permitting authority's issuance of a final disapproval. (4) The permitting authority will issue a preliminary approval or issue a disapproval of the application, taking into account additional information received from the owner or operator. (5 ) A determination to disapprove any application will be in writing and will specify the grounds on which the disapproval is based. (6) Approval of an applicant's proposed control technology must be set forth in a Notice of MACT Approval (or the equivalent) as described in §63.52(f).(c) Opportunity for public comment on Notice of MACT

Approval. The permitting authority will provide opportunity for public comment on the preliminary Notice of MACT Approval prior to issuance, including, at a minimum, (1) Avail ability for public inspection in at least one location in the area affected of the information submitted by the owner or operator and of the permitting authority's tentative determination; (2) A period for submittal of public comment of at least 30 days; and (3) A notice by prominent advertisement in the area affected of the location of the source information and analysis specified in §63.52(f). The form and content of the notice must be substantially equivalent to that found in §70.7 of this chapter. (4) An opportunity for a public hearing, if one is requested. The permitting authority will give at least 30 days notice in advance of any hearing. (d) Review by the EPA and affected States. The permitting authority must send copies of the preliminary notice ( in time for comment) and final notice required by paragraph (c) of this section to the Administrator through the appropriate Regional Office, and to all other State and local air pollution control agencies having jurisdiction inaffected States. The permi tting authority must provide EPA

with a review period for the final notice of at least 45 days and shall not issue a final Notice of MACT Approval until EPA objections are satisfied. (e) Compliance with MACT determinations. An owner or operator of a major source that is subject to a MACT determination must comply with notification, operation and maintenance, performance testing, monitoring, reporting, and recordkeeping requirements established under §63.52(h), under title V, and at the discretion of the permitting authority, under subpart A of this part. The permitting authority must provide the EPA with the opportunity to review compliance requirements for consistency with requirements established pursuant to title V during the review period under paragraph (d) of this section. (f) Equivalency under section 112(l). If a permitting authority requires preconstruction review for new source MACT determinations under this subpart, such requirement shall not necessitate a determination under subpart E of this par t. §63.55 Maximum achievable control technology (MACT) determinations for affected sources subject to case -by- case determination of equivalent emission limitations.(a) Requirements for permitting authorities. The

permitting authority must determine whet her the permit application is complete or an application for a Notice of MACT Approval is approvable. In either case, when the application is complete or approvable, the permitting authority must establish hazardou s air pollutant emissions limitations equivalent to the limitations that would apply if an emission standard had been issued in a timely manner under section 112(d) of the Act. The permitting authority must establish these emissions limitations con sistent with the following requirements and principles: (1) Emission limitations must be established for the equipment and activities within the affected sources within a source category or subcategory for which the section 112(j) deadline has passed. (2) Each emission limitation for an existing affected source must reflect the maximum degree of reduction in emissions of hazardous air pollutants (including a prohibition on such emissions, where achievable) that the permitting authority, taking into consider ation the cost of achieving such emission reduction and any non

- air quality health and environmental impacts and energy requirements, determines is achievable by affected sources in the category or subcategory for which the section 112(j)deadline has pass ed. This limitation must not be less

stringent than the MACT floor which must be established by the permitting authority according to the requirements of section 112(d)(3)(A) and (B) and must be based upon available information. (3) Each emission limitati on for a new affected source must reflect the maximum degree of reduction in emissions of hazardous air pollutants (including a prohibition on such emissions, where achievable) that the permitting authority, taking into consideration the cost of achieving such emission reduction and any non

- air quality health and environmental impacts and energy requirements, determines is achievable. This limitation must not be less stringent than the emission limitation achieved in practice by the best controlled similar source which must be established by the permitting authority according to the requirements of section 112(d)(3). This limitation must be based upon available information. (4) The permitting authority must select a specific design, equipment, work practic e, or operational standard, or combination thereof, when it is not feasible to prescribe or enforce an equivalent emission limitation due to the nature of the process or pollutant. It is not feasible to prescribe or enforce a limitation when theAdministr ator determines that hazardous air pollutants

cannot be emitted through a conveyance designed and constructed to capture such pollutant, or that any requirement for, or use of, such a conveyance would be inconsistent with any Federal, State, or local law, or the application of measurement methodology to a particular class of sources is not practicable due to technological and economic limitations. (5) Nothing in this subpart shall prevent a State or local permitting authority from establishing an emission
l imitation more stringent than required by Federal regulations. (b) Reporting to EPA. The owner or operator must submit additional copies of its application for a title V permit, permit revision, or Notice of MACT Approval, whichever is applicable, to the EPA at the same time the material is submitted to the permitting authority. §63.56 Requirements for case -by- case determination of equivalent emission limitations after promulgation of subsequent MACT standard. (a) If the Administrat or promulgates a relevant emission standard that is applicable to one or more affected sources within a major source before the date a permit application under this paragraph (a) is approved,the title V permit must contain the promulgated standard

rather than the emission limitation determined under §63.52, and the owner or operator must comply with the promulgated standard by the compliance date in the promulgated standard. (b) If the Administrator promulgates a relevant emission standard under section 11 2(d) of the Act that is applicable to a source after the date a permit is issued pursuant to §63.52 or §63.54, the permitting authority must incorporate requirements of that standard in the title V permit upon its next renewal. The permitting autho rity must establish a compliance date in the revised permit that assures that the owner or operator must comply with the promulgated standard within a reasonable time, but not longer than 8 years after such standard is promulgated or 8 years after the date by which the owner or operator was first required to comply with the emission limitation established by the permit, whichever is earlier. However, in no event shall the period for compliance for existing sources be shorter than that provided for existing sources in the promulgated standard. (c) Notwithstanding the requirements of paragraph (a) or (b) of this section, the requirements of paragraphs (c)(1) and (2) of this section shall apply.(1) If the Administrator promulgates an emission

standard under s ection 112(d) that is applicable to an affected source after the date a permit application under this paragraph is approved under §63.52 or §63.54, the permitting authority is not required to change the emission limitation in the permit to reflect t he promulgated standard if the permitting authority determines that the level of control required by the emission limitation in the permit is substantially as effective as that required by the promulgated standard pursuant to §63.1(e). (2) If the Administr ator promulgates an emission standard under section 112(d) of the Act that is applicable to an affected source after the date a permit application is approved under §63.52 or §63.54, and the level of control required by the promulgated standard is l ess stringent than the level of control required by any emission limitation in the prior case - by

- case MACT determination, the permitting authority is not required to incorporate any less stringent emission limitation of the promulgated standard in the titl e V permit and may in its discretion consider any more stringent provisions of the MACT determination to be applicable legal requirements when issuing or revising such a title V permit.