| Reference section(s)
| Requirement
| Applies to subpart LL
| Comment
| 63.1(a)(1) through (4) | General Applicability | Yes
| | 63.1(a)(5) | | No | [Reserved].
| 63.1(a)(6) | | Yes
| | 63.1(a)(7) through (9) | | No | [Reserved].
| 63.1(a)(10) through (12) | | Yes
| | 63.1(b)(1) through (3) | Initial Applicability Determination | Yes | (b)(2) Reserved.
| 63.1(c)(1) | Applicability after standard Established | Yes
| | 63.1(c)(2) | | Yes | Area sources are not subject to this subpart.
| 63.1(c)(3) and (4) | | No | [Reserved].
| 63.1(c)(5) | | Yes
| | 63.1(c)(6) | Reclassification | Yes
| | 63.1(d) | | No | [Reserved].
| 63.1(e) | Applicability of Permit Program | Yes
| | 63.2 | Definitions | Yes | Reconstruction defined in § 63.842.
| 63.3 | Units and Abbreviations | Yes
| | 63.4(a)(1) and (2) | Prohibited activities | Yes
| | 63.4(a)(3) through (5) | | No | [Reserved].
| 63.4(b) and (c) | Circumvention/Severability | Yes
| | 63.5(a) | Construction/Reconstruction Applicability | Yes
| | 63.5(b)(1) | Existing, New, Reconstructed Sources Requirements | Yes
| | 63.5(b)(2) | | No | [Reserved].
| 63.5(b)(3) and (4) | | Yes
| | 63.5(b)(5) | | No | [Reserved].
| 63.5(b)(6) | | Yes
| | 63.5(c) | | No | [Reserved].
| 63.5(d) | Application for Approval of Construction/Reconstruction | Yes
| | 63.5(e) | Approval of Construction/Reconstruction | Yes
| | 63.5(f) | Approval of Construction/Reconstruction Based on State Review | Yes
| | 63.6(a) | Compliance with Standards and Maintenance Applicability | Yes
| | 63.6(b)(1) through (5) | New and Reconstructed Source Dates | Yes | See § 847(a)(6) and (7).
| 63.6(b)(6) | | No | [Reserved].
| 63.6(b)(7) | | Yes
| | 63.6(c)(1) | Existing Source Dates | No | See § 847(a).
| 63.6(c)(2) | | Yes
| | 63.6(c)(3) and (4) | | No | [Reserved].
| 63.6(c)(5) | | Yes
| | 63.6(d) | | No | [Reserved].
| 63.6(e)(1)(i) | | No | See §§ 63.843(f) and 63.844(f) for general duty requirement.
| 63.6(e)(1)(ii) | | No
| | 63.6(e)(1)(iii) | | Yes
| | 63.6(e)(2) | | No | [Reserved].
| 63.6(e)(3) | Startup, Shutdown and Malfunction Plan | No
| | 63.6(f)(1) | Compliance with Emissions Standards | No
| | 63.6(f)(2) | Methods/Finding of Compliance | Yes
| | 63.6(g) | Alternative Standard | Yes
| | 63.6(h) | Compliance with Opacity/VE Standards | Only in § 63.845 | Opacity standards applicable only when incorporating the NSPS requirements under § 63.845.
| 63.6(i)(1) through (14) | Extension of Compliance | Yes
| | 63.6(i)(15) | | No | [Reserved].
| 63.6(i)(16) | | Yes
| | 63.6(j) | Exemption from Compliance | Yes
| | 63.7(a) | Performance Test Requirements Applicability | Yes
| | 63.7(b) | Notification | Yes
| | 63.7(c) | Quality Assurance/Test Plan | Yes
| | 63.7(d) | Testing facilities | Yes
| | 63.7(e)(1) | Conduct of Tests | No | See § 63.847(d).
| 63.7(e)(2) through (4) | | Yes
| | 63.7(f), (g), (h) | Alternative Test Method | Yes
| | 63.8(a)(1) and (2) | Monitoring Requirements Applicability | Yes
| | 63.8(a)(3) | | No | [Reserved].
| 63.8(b) | Conduct of Monitoring | Yes
| | 63.8(c)(1)(i) | | No | See §§ 63.843(f) and 63.844(f) for general duty requirement.
| 63.8(c)(1)(ii) | | Yes
| | 63.8(c)(1)(iii) | | No
| | 63.8(c)(2) through (d)(2) | | Yes
| | 63.8(d)(3) | | Yes, except for last sentence
| | 63.8(e) through (g) | | Yes
| | 63.9(a) | Notification Requirements Applicability | Yes
| | 63.9(b) | Initial Notifications | Yes | Notification of re-start specified in § 63.850(a)(9).
| 63.9(c) | Request for Compliance Extension | Yes
| | 63.9(d) | New Source Notification for Special Compliance Requirements | Yes
| | 63.9(e) | Notification of Performance Test | No
| | 63.9(f) | Notification of VE/Opacity Test | No
| | 63.9(g) | Additional CMS Notifications | No
| | 63.9(h)(1) through (3) | Notification of Compliance Status | Yes
| | 63.9(h)(4) | | No | [Reserved].
| 63.9(h)(5) and (6) | | Yes
| | 63.9(i) | Adjustment of Deadlines | Yes
| | 63.9(j) | Change in Previous Information | Yes
| | 63.9(k) | Electronic reporting procedures | Yes | Only as specified in § 63.9(j).
| 63.10(a) | Recordkeeping/Reporting Applicability | Yes
| | 63.10(b)(1) | General Recordkeeping Requirements | Yes
| | 63.10(b)(2)(i) | | No
| | 63.10(b)(2)(ii) | | No | See §§ 63.850(e)(4)(xvi) and (xvii) for recordkeeping of occurrence and duration of malfunctions and recordkeeping of actions taken during malfunction.
| 63.10(b)(2)(iii) | | Yes
| | 63.10(b)(2)(iv) and (v) | | No
| | 63.10(b)(2)(vi) through (xiv) | | Yes
| | 63.(10)(b)(3) | | Yes
| | 63.10(c)(1) through (9) | | Yes
| | 63.10(c)(10) and (11) | | No | See §§ 63.850(e)(4)(xvi) and (xvii) for recordkeeping of malfunctions.
| 63.10(c)(12) through (14) | | Yes
| | 63.10(c)(15) | | No
| | 63.10(d)(1) | General Reporting Requirements | Yes
| | 63.10(d)(2) | | No | See § 63.850(b).
| 63.10(d)(3) and (4) | | Yes
| | 63.10(d)(5) | Startup-Shutdown and Malfunction Reports | No | See § 63.850(d)(2) for reporting of malfunctions.
| 63.10(e) and (f) | Additional CMS Reports and Recordkeeping/Reporting Waiver | Yes
| | 63.11 | Control Device/work practices requirements Applicability | No
| | 63.12 | State Authority and Delegations | Yes
| | 63.13 | Addresses | Yes
| | 63.14 | Incorporation by Reference | Yes
| | 63.15 | Information Availability/Confidentiality | Yes
| | 63.16 | Performance Track Provisions | No | |
