40 CFR § 63.8455 - How do I demonstrate initial compliance with the emission limitations and work practice standards?

---
identifier: "/us/cfr/t40/s63.8455"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 63.8455 - How do I demonstrate initial compliance with the emission limitations and work practice standards?"
title_number: 40
title_name: "Protection of Environment"
section_number: "63.8455"
section_name: "How do I demonstrate initial compliance with the emission limitations and work practice standards?"
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "63"
part_name: "NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401"
regulatory_source: "57 FR 61992, Dec. 29, 1992, unless otherwise noted."
cfr_part: "63"
---


# 63.8455 How do I demonstrate initial compliance with the emission limitations and work practice standards?

(a) You must demonstrate initial compliance with each emission limitation and work practice standard that applies to you according to Table 5 to this subpart.

(b) You must establish each site-specific operating limit in Table 2 to this subpart that applies to you according to the requirements in § 63.8445 and Table 4 to this subpart.

(c) You must submit the Notification of Compliance Status containing the results of the initial compliance demonstration according to the requirements in § 63.8480(c).