Revisions to Testing Regulations for Air Emission Sources
---
identifier: "/us/fr/C1-2018-24747"
source: "fr"
legal_status: "authoritative_unofficial"
title: "Revisions to Testing Regulations for Air Emission Sources"
title_number: 0
title_name: "Federal Register"
section_number: "C1-2018-24747"
section_name: "Revisions to Testing Regulations for Air Emission Sources"
positive_law: false
currency: "2018-11-20"
last_updated: "2018-11-20"
format_version: "1.1.0"
generator: "[email protected]"
agency: "Environmental Protection Agency"
document_number: "C1-2018-24747"
document_type: "rule"
publication_date: "2018-11-20"
agencies:
- "Environmental Protection Agency"
cfr_references:
- "40 CFR Part 51"
- "40 CFR Part 60"
- "40 CFR Part 63"
rin: "2060-AS95"
fr_citation: "83 FR 58506"
fr_volume: 83
docket_ids:
- "EPA-HQ-OAR-2016-0510"
- "FRL-9986-42-OAR"
---
# Revisions to Testing Regulations for Air Emission Sources
**Correction**
In rule document 2018-24747, appearing on pages 56713 through 56734 in the issue of Wednesday, November 14, 2018 make the following correction:
**40 CFR Part 63**
On page 56732, the asterisks directly above Eq. 323-8 were printed in error and those after were omitted. The equation is corrected to appear as set forth below:
**Appendix A to Part 63 [Corrected]**
**Method 323-Measurment of Formaldehyde Emissions From Natural Gas-Fired Stationary Sources-Acetyl Acetone Derivitization Method**