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

40 CFR Table 5 to Subpart PPPPP of Part 63: Table 5 to Subpart PPPPP of Part 63—Continuous Compliance With Emission Limitations

As stated in § 63.9340, you must demonstrate continuous compliance with each emission limitation that applies to you according to the following table:
For the . . . You must . . . By . . .
1. CO or THC concentration emission limitation a. Demonstrate CO or THC emissions are 20 ppmvd or less over each 4- hour rolling averaging period i. Collecting the CPMS data according to § 63.9306(a), reducing the measurements to 1-hour averages used to calculate the 3-hr block average; or ii. Collecting the CEMS data according to § 63.9307(a), reducing the measurements to 1-hour averages, correcting them to 15 percent O2 content, dry basis, according to § 63.9320.
2. CO or THC percent reduction emission limitation a. Demonstrate a reduction in CO or THC of 96 percent or more over each 4-hour rolling averaging period i. Collecting the CPMS data according to § 63.9306(a), reducing the measurements to 1-hour averages; or ii. Collecting the CEMS data according to § 63.9307(b), reducing the measurements to 1-hour averages, correcting them to 15 percent O2 content, dry basis, calculating the CO or THC percent reduction according to § 63.9320.

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 PPPPP—National Emission Standards for Hazardous Air Pollutants for Engine Test Cells/Stands

As stated in § 63.9340, you must demonstrate continuous compliance with each emission limitation that applies to you according to the following table:

For the . . . You must . . . By . . .

1. CO or THC concentration emission limitation a. Demonstrate CO or THC emissions are 20 ppmvd or less over each 4- hour rolling averaging period i. Collecting the CPMS data according to § 63.9306(a), reducing the measurements to 1-hour averages used to calculate the 3-hr block average; or ii. Collecting the CEMS data according to § 63.9307(a), reducing the measurements to 1-hour averages, correcting them to 15 percent O2 content, dry basis, according to § 63.9320.

2. CO or THC percent reduction emission limitation a. Demonstrate a reduction in CO or THC of 96 percent or more over each 4-hour rolling averaging period i. Collecting the CPMS data according to § 63.9306(a), reducing the measurements to 1-hour averages; or ii. Collecting the CEMS data according to § 63.9307(b), reducing the measurements to 1-hour averages, correcting them to 15 percent O2 content, dry basis, calculating the CO or THC percent reduction according to § 63.9320.

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

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