Laws & Regulations

Condensable PM Adjustment for Ammonium Sulfate Formation in M202 Test Results

This document is part of the NSR Policy and Guidance Database.

Regulated New Source Review (NSR) Pollutants

Explanation of the meaning of Regulated New Source Review (NSR) Pollutants

Marine Protection, Research and Sanctuary Act Permits: Frequently Asked Questions

The disposition of material in the ocean cannot occur unless a permit is issued under the MPRSA. Information is provided about who needs a permit, marine protection criteria, types of MPRSA permits, and permit conditions.

About Urban Air Toxics

Information about urban air toxics, definition, and sources

What are Hazardous Air Pollutants?

What are hazardous air pollutants?

PRN 80-2: Label Improvement Program: Deletion of Salt Water Emesis Statements

As of 1980, pesticide registrants had to remove salt-water emesis statements from product labels.

Available and Emerging Technologies for Reducing Greenhouse Gas Emissions from the Iron and Steel Industry

PRN 75-5: Unacceptable Use of the Word "Chlorine" in the Name and Labeling of Pesticides

Use of the word "CHLORINE" on labels other than in products containing liquified chlorine under pressure has been determined to be in violation of Section 2(q)(l)(A) of the Federal Insecticide, Fungicide, and Rodenticide Act.

PRN 90-1: Inert Ingredients in Pesticide Products; Revised Policy Statement

This notice discusses compliance with Federal Register Notice (54 FR 58314; November 22, 1989).

PRN 90-3: Announcing the Formation of an Industry-Wide Spray Drift Task Force

"A Spray Drift Task Force has been organized pursuant to provisions of FIFRA section 3 (c)(2)(B)(ii) to share the cost of developing a generic spray drift data base capable of satisfying spray drift data requirements for pesticide product registrations.

PRN 91-2: Accuracy of Stated Percentages for Ingredients Statement

The purpose of this notice is to clarify the Office of Pesticide Program's policy with respect to the statement of percentages in a pesticide's label's ingredient statement.

PRN 91-1: Procedures for Voluntarily Requesting Deletion of Approved Uses from Registered Labels

This pesticide registration notice defines procedures for registrants to use when they with to request an amendment to delete one or more uses from an approved registration, and it summarizes the actions the Agency will take in response to such requests.

PRN 92-1: Requirement to submit and identify adverse effects information

This notice clarifies the Office of Pesticide Program's policy with regard to submission and identification of adverse effects information under FIFRA Section 6(a)(2).

PRN 70-16: Requirements for Additional Labeling on Products Containing Sodium Hypochlorite

This PR Notice describes additional labeling for pesticide products containing sodium hypochlorite, due to the rapid degradation of the products, to ensure that product effectiveness is maintained.

PRN 73-4: Residual Insecticides in Food Handling Establishments

This notice provides a copy of a Federal Register notice published July 6, 1973, regarding certain insecticides used in food-handling establishments. It establishes certain definitions and requirements related to approval for crack and crevice treatment.

SBAR Panel: Findings of Significant Contribution and Rulemaking on Section 126 Petitions for Purposes of Reducing Interstate Ozone Transport

SBAR panel on regulating the windborne transport of ozone smog and chemicals, such as nitrogen oxides