Regulations last checked for updates: Oct 28, 2025

Title 40 - Protection of Environment last revised: Sep 28, 2029
All TitlesTitle 40Chapter IPart 63Subpart NNNAppendix - Table 2 to Subpart NNN of Part 63—Emissions Limits and Compliance Dates
Collapse to view onlyAppendix - Table 2 to Subpart NNN of Part 63—Emissions Limits and Compliance Dates
Table of Contents

authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.
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