Regulations last checked for updates: Oct 30, 2025

Title 40 - Protection of Environment last revised: Sep 30, 2029
All TitlesTitle 40Chapter IPart 63Subpart KKKKKAppendix -
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Appendix -

As stated in § 63.8630, you must submit each notification that applies to you according to the following table:

If you . . . You must . . . No later than . . . As specified in . . .
1. Start up your affected source before December 28, 2015Submit an Initial NotificationJune 22, 2016, or no later than 120 days after the source becomes subject to this subpart, whichever is later§ 63.9(b)(2).
2. Start up your new or reconstructed affected source on or after December 28, 2015Submit an Initial Notification120 calendar days after you become subject to this subpart§ 63.9(b)(2).
3. Are required to conduct a performance testSubmit a notification of intent to conduct a performance test60 calendar days before the performance test is scheduled to begin§ 63.7(b)(1).
4. Are required to conduct a compliance demonstration that includes a performance test according to the requirements in Table 4 to this subpartSubmit a Notification of Compliance Status, including the performance test results60 calendar days following the completion of the performance test, by the close of business§ 63.9(h) and § 63.10(d)(2).
5. Are required to conduct a compliance demonstration required in Table 6 to this subpart that does not include a performance test (i.e., compliance demonstrations for the work practice standards)Submit a Notification of Compliance Status30 calendar days following the completion of the compliance demonstrations, by the close of business§ 63.9(h).
6. Request to use the routine control device maintenance alternative standard according to § 63.8570(d)Submit your request120 calendar days before the compliance date specified in § 63.8545
7. Own or operate an affected kiln that is subject to the work practice standard specified in Item 1 of Table 3 to this subpart, and you intend to use a fuel other than natural gas or equivalent to fire the affected kilnSubmit a notification of alternative fuel use48 hours following the declaration of a period of natural gas curtailment or supply interruption, as defined in § 63.8665
[80 FR 65543, Oct. 26, 2015, as amended at 85 FR 73915, Nov. 19, 2020]
authority: 42 U.S.C. 7401
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