Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR Table 4 to Subpart NNNNN of Part 63: Table 4 to Subpart NNNNN of Part 63—Initial Compliance With Emission Limitations and Work Practice Standards

As stated in § 63.9030, you must comply with the following requirements to demonstrate initial compliance with the applicable emission limits for each affected source vented to a control device and each work practice standard.
For each . . . For the following emission limit or work practice standard . . . You have demonstrated initial compliance if . . .
1. HCl process vent and each HCl storage tank and HCl transfer operation for which you are conducting a performance test a. In Table 1 to this subpart i. The average percent reduction of HCl and Cl2 (if applicable), measured over the period of the performance test conducted according to Table 3 of this subpart and determined in accordance with § 63.9020(b), is greater than or equal to the applicable percent reduction emission limitation specified in Table 1 of this subpart; or
ii. The average HCl and Cl2 (if applicable) concentration, measured over the period of the performance test conducted according to Table 3 of this subpart, is less than or equal to the applicable concentration emission limitation specified in Table 1 of this subpart.
2. HCl storage tank and HCl transfer operation for which you are preparing a design evaluation in lieu of conducting a performance test a. In Table 1 to this subpart i. The percent reduction of HCl, demonstrated by a design evaluation prepared in accordance with § 63.9020(c), is greater than or equal to the applicable percent reduction emission limitation specified in Table 1 of this subpart; or
ii. The HCl concentration, demonstrated by a design evaluation prepared in accordance with § 63.9020(c), is less than or equal to the applicable concentration emission limitation specified in Table 1 of this subpart.
3. Leaking equipment a. In Table 1 to this subpart i. You certify in your Notification of Compliance Status that you have developed and implemented your LDAR plan and submitted it to the Administrator for comment only.

Where this section sits in the code

Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER C—AIR PROGRAMS
PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES
Subpart NNNNN—National Emission Standards for Hazardous Air Pollutants: Hydrochloric Acid Production

For each . . . For the following emission limit or work practice standard . . . You have demonstrated initial compliance if . . .

1. HCl process vent and each HCl storage tank and HCl transfer operation for which you are conducting a performance test a. In Table 1 to this subpart i. The average percent reduction of HCl and Cl2 (if applicable), measured over the period of the performance test conducted according to Table 3 of this subpart and determined in accordance with § 63.9020(b), is greater than or equal to the applicable percent reduction emission limitation specified in Table 1 of this subpart; or

ii. The average HCl and Cl2 (if applicable) concentration, measured over the period of the performance test conducted according to Table 3 of this subpart, is less than or equal to the applicable concentration emission limitation specified in Table 1 of this subpart.

2. HCl storage tank and HCl transfer operation for which you are preparing a design evaluation in lieu of conducting a performance test a. In Table 1 to this subpart i. The percent reduction of HCl, demonstrated by a design evaluation prepared in accordance with § 63.9020(c), is greater than or equal to the applicable percent reduction emission limitation specified in Table 1 of this subpart; or

ii. The HCl concentration, demonstrated by a design evaluation prepared in accordance with § 63.9020(c), is less than or equal to the applicable concentration emission limitation specified in Table 1 of this subpart.

3. Leaking equipment a. In Table 1 to this subpart i. You certify in your Notification of Compliance Status that you have developed and implemented your LDAR plan and submitted it to the Administrator for comment only.

Collected 2026-08-27T02:26:04Z. Source file · JSON

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