BS
Boise Standard
Treasure Valley · AI Directory
40 C.F.R. · Protection of Environment
40 C.F.R. § 52.51

Classification of regions.

Title 40 C.F.R. ● ACTIVE Primary Source
Regulatory Text

40 C.F.R. § 52.51 — Classification of regions.

§ 52.51 Classification of regions. The Alabama plan was evaluated on the basis of the following classifications: Air quality control region Pollutant Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Photochemical oxidants (hydrocarbons) Alabama & Tombigbee Rivers Intrastate II III III III III Columbus (Georgia)-Phenix City (Alabama) Interstate I III III III III East Alabama Intrastate I III III III III Metropolitan Birmingham Intrastate I II III I I Mobile (Alabama)-Pensacola-Panama City (Florida)-Southern Mississippi Interstate I I III III I Southeast Alabama Intrastate II III III III III Tennessee River Valley (Alabama)-Cumberland Mountains (Tennessee) Interstate I I III III III [37 FR 10847, May 31, 1972]

Source: ecfr.gov · govinfo.gov — public domain Official Source ↗
Root-LD Entity Data
◈ Machine-Readable Provenance Record Root-LD v1.0 · boisestandard.org
Federation ID
BS-CFR40-SEC-980F36
Entity Class
REGULATION / FEDERAL-CFR-SECTION
Domain Signature
boisestandard.org
Citation
40 C.F.R. § 52.51
Corpus
CFR — Code of Federal Regulations
Status
✓ ACTIVE
Source
PRIMARY-SOURCE
Source Verified
✓ TRUE
Content Hash
4a999bf095abcd45...
Semantic Edges
Pending — corpus passes queued
The regulatory text of 40 C.F.R. § 52.51 is reproduced from the official Code of Federal Regulations as published by the Office of the Federal Register and the National Archives and Records Administration.
Navigate Corpus — Title 40 C.F.R.
← 40 C.F.R. § 52.50 40 C.F.R. § 52.53 →
Title 40 — Protection of Environment
40 C.F.R. § 1.140 C.F.R. § 1.340 C.F.R. § 1.540 C.F.R. § 1.740 C.F.R. § 1.2140 C.F.R. § 1.2340 C.F.R. § 1.2540 C.F.R. § 1.2740 C.F.R. § 1.2940 C.F.R. § 1.3140 C.F.R. § 1.3340 C.F.R. § 1.3540 C.F.R. § 1.3740 C.F.R. § 1.3940 C.F.R. § 1.4140 C.F.R. § 1.4340 C.F.R. § 1.4540 C.F.R. § 1.4740 C.F.R. § 1.4940 C.F.R. § 1.6140 C.F.R. § 2.10040 C.F.R. § 2.10140 C.F.R. § 2.10240 C.F.R. § 2.10340 C.F.R. § 2.10440 C.F.R. § 2.10540 C.F.R. § 2.10640 C.F.R. § 2.10740 C.F.R. § 2.10840 C.F.R. § 2.201
40 C.F.R. — public domain ← All Legislation
◈ Provenance
boisestandard.org → United States → Law → CFR → Title 40 → 40 C.F.R. § 52.51