yourstate.us
Home / United States / 40 CFR
40 CFR 52.1921

§ 52.1921 Classification of regions.

United States · 40 CFR — Protection of Environment · Status: effective

Get this as JSONEmbed this
Cite this
Citation
40 CFR 52.1921, § 52.1921 Classification of regions, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/170795
Permanent ID
ys:prov:170795@1
SHA-256
084b1d9f33b68e4e06ec7a38e54de98a713053c9c49d072bb884ed4b2f73f854

The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.

Full text

The Oklahoma plan was evaluated on the basis of the following classifications:

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.