Skip to main content
Find a Lawyer

Code of Federal Regulations Title 40. Protection of Environment § 40.52.771 Classification of regions

Current as of January 02, 2025 | Updated by Findlaw Staff

(a) The Indiana plan was evaluated on the basis of the following classifications:

Pollutant

Photo-

chemical

Particu-

Carbon

oxidants

Air quality control

late

Sulfur

Nitrogen

monox-

(hydro-

region

matter

oxides

dioxide

ide

carbons)

East Central Indiana Intrastate

II

II

III

III

III

Evansville (Indiana)-Owensboro-Henderson (Kentucky) Interstate

I

II

III

III

III

Louisville Interstate

I

I

III

III

I

Metropolitan Chicago Interstate (Indiana-Illinois)

I

I

I

I

I

Metropolitan Cincinnati Interstate

I

II

III

III

I

Metropolitan Indianapolis Intrastate

I

I

I

I

I

Northeast Indiana Intrastate

II

III

III

III

III

South Bend-Elkhart (Indiana)-Benton Harbor (Michigan) Interstate

I

IA

III

III

III

Southern Indiana Intrastate

IA

IA

III

III

III

Wabash Valley Intrastate

I

I

III

III

III

(b) The requirements of § 51.150 of this chapter are not met by the classification of counties in APC–22 for the purposes of attainment and maintenance of the total suspended particulate ambient air quality standards.

(c) The requirements of § 51.150 of this chapter are not met by the classification of counties in APC–22 for the purposes of attainment and maintenance of the photochemical oxidant (hydrocarbon) ambient air quality standards.

(d) The requirements of § 51.150 of this chapter are not met by the classification of Jefferson, LaPorte, Porter, Vigo and Warrick Counties in Indiana in Regulation APC–22 for the purposes of attainment and maintenance of the sulfur dioxide ambient air quality standards.

Previous Part of Code Next Part of Code
Back to Chapter List

Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.52.771 Classification of regions - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-52-771/

FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature before relying on it for your legal needs.

Was this helpful?

Welcome to FindLaw's Cases & Codes

A free source of state and federal court opinions, state laws, and the United States Code. For more information about the legal concepts addressed by these cases and statutes, visit FindLaw’s Learn About the Law.

Go to Learn About the Law

Latest Blog Posts

For Legal Professionals

Learn About The Law

Get help with your legal needs

FindLaw’s Learn About the Law features thousands of informational articles to help you understand your options. And if you’re ready to hire an attorney, find one in your area who can help.

Go to Learn About the Law

Need to Find an Attorney?

Search our directory by legal issue

Enter information in one or both fields (Required)

Copied to clipboard