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Table 1 to Subpart U of Part 63 - Applicability of General Provisions to Subpart U Affected Sources

RegSenseCFR RegulationsEnvironmental Protection Agency (EPA)Hazardous Air PollutantsEnvironmentalAir QualityFocus AreaUSAEnglishAir ProgramsCFR Appendix

Reference Applies to subpart U Explanation
§63.1(a)(1) Yes §63.482 specifies definitions in addition to or that supersede definitions in §63.2.
§63.1(a)(2) Yes.
§63.1(a)(3) Yes §63.481(f) through (k) and §63.160(b) identify those standards which may apply in addition to the requirements of subparts U and H of this part, and specify how compliance shall be achieved.
§63.1(a)(4) Yes Subpart U (this table) specifies the applicability of each paragraph in subpart A to subpart U.
§63.1(a)(5) No [Reserved.].
§63.1(a)(6)-(8) Yes.
§63.1(a)(9) No [Reserved.].
§63.1(a)(10) Yes.
§63.1(a)(11) Yes.
§63.1(a)(12)-(14) Yes.
§63.1(b)(1) No §63.480(a) contains specific applicability criteria.
§63.1(b)(2) Yes.
§63.1(b)(3) No §63.480(b) provides documentation requirements for EPPUs not considered affected sources.
§63.1(c)(1) Yes Subpart U (this table) specifies the applicability of each paragraph in subpart A to subpart U.
§63.1(c)(2) No Area sources are not subject to subpart U.
§63.1(c)(3) No [Reserved.].
§63.1(c)(4) Yes.
§63.1(c)(5) Yes Except that affected sources are not required to submit notifications that are not required by subpart U.
§63.1(c)(6)Yes
§63.1(d) No [Reserved.].
§63.1(e) Yes.
§63.2 Yes §63.482 specifies those subpart A definitions that apply to subpart U.
§63.3 Yes.
§63.4(a)(1)-(3) Yes.
§63.4(a)(4) No [Reserved.].
§63.4(a)(5) Yes.
§63.4(b) Yes.
§63.4(c) Yes.
§63.5(a)(1) Yes Except the terms “source” and “stationary source” should be interpreted as having the same meaning as “affected source”.
§63.5(a)(2) Yes.
§63.5(b)(1) Yes Except §63.480(i) defines when construction or reconstruction is subject to new source standards.
§63.5(b)(2) No [Reserved.].
§63.5(b)(3) Yes.
§63.5(b)(4) Yes Except that the Initial Notification and §63.9(b) requirements do not apply.
§63.5(b)(5) Yes.
§63.5(b)(6) Yes Except that §63.480(i) defines when construction or reconstruction is subject to the new source standards.
§63.5(c) No [Reserved.].
§63.5(d)(1)(i) Yes Except that the references to the Initial Notification and §63.9(b)(5) do not apply.
§63.5(d)(1)(ii) Yes Except that §63.5(d)(1)(ii)(H) does not apply.
§63.5(d)(1)(iii) No §63.506(e)(5) and §63.502(f) specify Notification of Compliance Status requirements.
§63.5(d)(2) No.
§63.5(d)(3) Yes Except §63.5(d)(3)(ii) does not apply, and equipment leaks subject to §63.502 are exempt.
§63.5(d)(4) Yes.
§63.5(e) Yes.
§63.5(f)(1) Yes.
§63.5(f)(2) Yes Except that where §63.9(b)(2) is referred to, the owner or operator need not comply.
§63.6(a) Yes.
§63.6(b)(1) No The dates specified in §63.481(b) apply, instead.
§63.6(b)(2) No.
§63.6(b)(3) No.
§63.6(b)(4) No.
§63.6(b)(5) No.
§63.6(b)(6) No [Reserved.].
§63.6(b)(7) No.
§63.6(c)(1) Yes §63.481 specifies the compliance date.
§63.6(c)(2) No.
§63.6(c)(3) No [Reserved.].
§63.6(c)(4) No [Reserved.].
§63.6(c)(5) Yes.
§63.6(d) No [Reserved.].
§63.6(e)(1)(i) No See §63.483(a) for general duty requirement. Any cross reference to §63.6(e)(1)(i) in any other general provision incorporated by reference shall be treated as a cross reference to §63.483(a).
§63.6(e)(1)(ii) No
§63.6(e)(1)(iii) Yes.
§63.6(e)(2) No [Reserved]
§63.6(e)(3) No
§63.6(f)(1) No
§63.6(f)(2) Yes Except 63.7(c), as referred to in §63.6(f)(2)(iii)(D) does not apply, and except that §63.6(f)(2)(ii) does not apply to equipment leaks subject to §63.502.
§63.6(f)(3) Yes.
§63.6(g) Yes.
§63.6(h) No Subpart U does not require opacity and visible emission standards.
§63.6(i)(1) Yes.
§63.6(i)(2) Yes.
§63.6(i)(3) Yes.
§63.6(i)(4)(i)(A) Yes.
§63.6(i)(4)(i)(B) No Dates are specified in §63.481(e) and §63.506(e)(3)(i).
§63.6(i)(4)(ii) No; except yes for affected sources producing neoprene
§63.6(i)(5)-(14) Yes.
§63.6(i)(15) No [Reserved.].
§63.6(i)(16) Yes.
§63.6(j) Yes.
§63.7(a)(1) Yes.
§63.7(a)(2) No. §63.506(e)(5) specifies the submittal dates of performance test results for all emission points except equipment leaks; for equipment leaks, compliance demonstration results are reported in the Periodic Reports.
§63.7(a)(3) Yes.
§63.7(a)(4)Yes.
§63.7(b) No §63.504(a)(4) specifies notification requirements.
§63.7(c) No Except if the owner or operator chooses to submit an alternative nonopacity emission standard for approval under §63.6(g).
§63.7(d) Yes.
§63.7(e)(1) No See §63.504(a)(1). Any cross-reference to §63.7(e)(1) in any other general provision incorporated by reference shall be treated as a cross-reference to §63.504(a)(1).
§63.7(e)(2) Yes.
§63.7(e)(3) No Subpart U specifies requirements.
§63.7(e)(4) Yes.
§63.7(f) Yes Except that §63.144(b)(5)(iii)(A) & (B) shall apply for process wastewater. Also, since a site specific test plan is not required, the notification deadline in §63.7(f)(2)(i) shall be 60 days prior to the performance test, and in §63.7(f)(3) approval or disapproval of the alternative test method shall not be tied to the site specific test plan.
§63.7(g) Yes Except that the requirements in §63.506(e)(5) shall apply instead of references to the Notification of Compliance Status report in 63.9(h). In addition, equipment leaks subject to §63.502 are not required to conduct performance tests.
§63.7(h) Yes Except §63.7(h)(4)(ii) is not applicable, since the site-specific test plans in §63.7(c)(2) are not required.
§63.8(a)(1) Yes.
§63.8(a)(2) No.
§63.8(a)(3) No [Reserved.].
§63.8(a)(4) Yes, except for flares subject to §63.508
§63.8(b)(1) Yes.
§63.8(b)(2) No Subpart U specifies locations to conduct monitoring.
§63.8(b)(3) Yes.
§63.8(c)(1) Yes.
§63.8(c)(1)(i) Yes, before July 15, 2027. No, beginning on and after July 15, 2027
§63.8(c)(1)(ii) No For all emission points except equipment leaks, comply with §63.506(b)(1)(i)(B); for equipment leaks, comply with §63.181(g)(2)(iii).
§63.8(c)(1)(iii) Yes, before July 15, 2027. No, beginning on and after July 15, 2027
§63.8(c)(2) Yes.
§63.8(c)(3) Yes.
§63.8(c)(4) No §63.505 specifies monitoring frequency; not applicable to equipment leaks, because §63.502 does not require continuous monitoring systems.
§63.8(c)(5)-(8) No.
§63.8(d) No.
§63.8(e) No.
§63.8(f)(1)-(3) Yes.
§63.8(f)(4)(i) No Timeframe for submitting request is specified in §63.506(f) or (g); not applicable to equipment leaks, because §63.502 (through reference to subpart H) specifies acceptable alternative methods.
§63.8(f)(4)(ii) No Contents of request are specified in §63.506(f) or (g).
§63.8(f)(4)(iii) No.
§63.8(f)(5)(i) Yes.
§63.8(f)(5)(ii) No.
§63.8(f)(5)(iii) Yes.
§63.8(f)(6) No Subpart U does not require CEM's.
§63.8(g) No Data reduction procedures specified in §63.506(d) and (h); not applicable to equipment leaks.
§63.9(a) Yes.
§63.9(b) No Subpart U does not require an initial notification.
§63.9(c) Yes.
§63.9(d) Yes.
§63.9(e) No §63.504(a)(4) specifies notification deadline.
§63.9(f) No Subpart U does not require opacity and visible emission standards.
§63.9(g) No.
§63.9(h) No §63.506(e)(5) specifies Notification of Compliance Status requirements.
§63.9(i) Yes.
§63.9(j) Yes For change in major source status only.
§63.9(k)YesOnly as specified in §63.9(j).
§63.10(a) Yes
§63.10(b)(1) No §63.506(a) specifies record retention requirements.
§63.10(b)(2) No Subpart U specifies recordkeeping requirements.
§63.10(b)(3) No §63.480(b) requires documentation of sources that are not affected sources.
§63.10(c) No §63.506 specifies recordkeeping requirements.
§63.10(d)(1) Yes
§63.10(d)(2) No §63.506(e)(5) specifies performance test reporting requirements; not applicable to equipment leaks.
§63.10(d)(3) No Subpart U does not require opacity and visible emission standards.
§63.10(d)(4) Yes
63.10(d)(5)No
63.10(d)(5)(i) No
§63.10(e) No §63.506 specifies reporting requirements.
§63.10(f) Yes
§63.11 Yes Except for flares subject to §63.508, §63.11(b) specifies requirements for flares used to comply with provisions of this subpart. §63.504(c) contains the requirements to conduct compliance demonstrations for flares subject to this subpart that are not subject to §63.508. §63.11(c), (d), and (e) specifies requirements for an alternative work practice for equipment leaks.
§63.12 Yes Except that the authority of §63.503(i) and the authority of §63.177 (for equipment leaks) will not be delegated to States.
§§63.13-63.15 Yes

[66 FR 36928, July 16, 2001, as amended at 71 FR 20457, Apr. 20, 2006; 73 FR 78213, Dec. 22, 2008; 85 FR 73891, Nov. 19, 2020; 89 FR 43067, May 16, 2024]

['Air Programs']
['Hazardous Air Pollutants']
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