Regulations last checked for updates: May 16, 2024

Title 40 - Protection of Environment last revised: May 14, 2024
Appendix - Table 1 to Subpart II of Part 63—General Provisions of Applicability to Subpart II
Reference Applies to subpart II Comment
63.1(a)(1)-(3)Yes.
63.1(a)(4)YesSubpart II clarifies the applicability of each paragraph in subpart A to sources subject to subpart II.
63.1(a)(5)-(7)Yes
63.1(a)(8)NoDiscusses State programs.
63.1(a)(9)-(14)Yes
63.1(b)(1)Yes§ 63.781 specifies applicability in more detail.
63.1(b)(2)-(3)Yes
63.1(c)-(e)Yes
63.2YesAdditional terms are defined in § 63.782; when overlap between subparts A and II occurs, subpart II takes precedence.
63.3YesOther units used in subpart II are defined in that subpart.
63.4Yes
63.5(a)-(c)Yes
63.5(d)YesExcept information on control devices and control efficiencies should not be included in the application unless an add-on control system is or will be used to comply with subpart II in accordance with § 63.783(c).
63.5(e)-(f)Yes
63.6(a)-(b)Yes
63.6(c)-(d)YesExcept § 63.784(a) specifies the compliance date for existing affected sources.
63.6(e)(1)(i)NoSee § 63.783(b)(1) for general duty requirement.
63.6(e)(1)(ii)No.
63.6(e)(1)(iii)Yes.
63.6(e)(2)NoSection reserved.
63.6(e)(3)No.
63.6(f)(1)No.
63.6(f)(2)-(f)(3)NoIf an alternative means of limiting emissions (e.g., an add-on control system) is used to comply with subpart II in accordance with § 63.783(c), then this section does apply.
63.6(g)No§ 63.783(c) specifies procedures for application and approval of alternative means of limiting emissions.
63.6(h)NoSubpart II does not contain any opacity or visible emission standards.
63.6(i)-(j)Yes
63.7(a)-(d)NoIf an alternative means of limiting emissions (e.g., an add-on control system) is used to comply with subpart II in accordance with § 63.783(c), then these sections do apply.
63.7(e)(1)NoIf an alternative means of limiting emissions (e.g., an add-on control system) is used to comply with subpart II in accordance with § 63.783(c), then see § 63.786(e).
63.7(e)(2)-(e)(4)NoIf an alternative means of limiting emissions (e.g., an add-on control system) is used to comply with subpart II in accordance with § 63.783(c), then these sections do apply.
63.8NoIf an alternative means of limiting emissions (e.g., an add-on control system) is used to comply with subpart II in accordance with § 63.783(c), then this section does apply, with the exception of § 63.8(c)(1)(i), § 63.8(c)(1)(iii), and the last sentence of § 63.8(d)(3).
63.9(a)-(d)Yes§ 63.787(a) extends the initial notification deadline to 180 days. § 63.787(b) requires an implementation plan to be submitted with the initial notification.
63.9(e)NoIf an alternative means of limiting emissions (e.g., an add-on control system) is used to comply with subpart II in accordance with § 63.783(c), then this paragraph does apply.
63.9(f)NoSubpart II does not contain any opacity or visible emission standards
63.9(g)-(h)NoIf an alternative means of limiting emissions (e.g., an add-on control system) is used to comply with subpart II in accordance with § 63.783(c) then these paragraphs do apply.
63.9(i)-(k)Yes§ 63.9(k) only as specified in § 63.9(j).
63.10(a)Yes.
63.10(b)(1)Yes.
63.10(b)(2)(i)No.
63.10(b)(2)(ii)NoSee § 63.788(b)(5) for recordkeeping of occurrence, duration, and actions taken during malfunctions.
63.10(b)(2)(iii)Yes.
63.10(b)(2)(iv)-(b)(2)(v)No.
63.10(b)(2)(vi)-(b)(2)(xiv)Yes.
63.10(b)(3)Yes.
63.10(c)(1)-(9)NoIf an alternative means of limiting emissions (e.g., an add-on control system) is used to comply with subpart II in accordance with § 63.783(c), then these sections do apply.
63.10(c)(10)-(11)NoIf an alternative means of limiting emissions (e.g., an add-on control system) is used to comply with subpart II in accordance with § 63.783(c), then see § 63.788(b)(5) for records of malfunctions.
63.10(c)(12)-(14)NoIf an alternative means of limiting emissions (e.g., an add-on control system) is used to comply with subpart II in accordance with § 63.783(c), then these sections do apply.
63.10(c)(15)No.
63.10(d)(1)-(4)Yes.
63.10(d)(5)NoSee § 63.788(c) for reporting malfunctions.
63.10(e)NoIf an alternative means of limiting emissions (e.g., an add-on control system) is used to comply with subpart II in accordance with § 63.783(c), then this paragraph does apply.
63.10(f)Yes
63.11NoIf an alternative means of limiting emissions (e.g., an add-on control system) is used to comply with subpart II in accordance with § 63.783(c), then this section does apply.
63.12-63.15Yes
[60 FR 64336, Dec. 15, 1995, as amended at 76 FR 72070, Nov. 21, 2011; 85 FR 73895, Nov. 19, 2020]
authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.