Learn the Issues

Aftermarket Defeat Devices and Tampering are Illegal and Undermine Vehicle Emissions Controls Enforcement Alert

This Alert is intended to remind all regulated entities that installing a defeat device or tampering with a motor vehicle or non-road equipment can be costly to their businesses and can subject them to enforcement and penalties.

Labeling HCFC Products Starting 2015: What You Need to Know

Fact sheet explains that products imported or manufactured after January 1, 2015 that contain or were manufactured with an HCFC must bear a warning label before they can be introduced into interstate commerce.

Transitioning to Low-GWP Alternatives in Commercial Refrigeration

This fact sheet provides information on low-GWP alternatives in commercial refrigeration. It discusses HFC alternatives, market trends, challenges to market entry for alternatives, and potential solutions.

Information about the Phaseout for Equipment Owners & Operators

Overview page provides links to information on how the phaseout affects owners and operators of refrigeration, air conditioning, and other equipment.

Frequently Asked Questions and Answers about the Montreal Protocol

This fact sheet provides answers to frequently asked questions about the Montreal Protocol. It includes information on general ozone science, policies and regulations, and future ozone protection.

Transitioning to Low-GWP Alternatives in Residential and Commercial Air Conditioning

This fact sheet provides information on low-GWP alternatives in newly manufactured residential and commercial air conditioning systems. It discusses HFC alternatives, market trends, challenges to market entry for alternatives, and potential solutions.

Managing Refrigerant Emissions

Access information on EPA's efforts to address ozone layer depletion by reducing emissions of refrigerants from stationary refrigeration and air conditioning systems and motor vehicle air conditioning systems.

Sources and Solutions: In and Around the Home

Our homes - through appliances, yards, driveways and even pets - contribute to the problem of nutrient pollution.

Chemical Speciation Network (CSN) - General Information

This page includes general information about the Chemical Speciation Network that is not covered on the main page. Commonly visited documents, including calendars, site lists, and historical files for the program are listed here

Georgia - 2018 Annual Network Plans

Network plan provides framework for establishment and maintenance of air quality surveillance system for the state of Georgia

Chemical Speciation (2016 NAAMC)

Session provided presentations related to implementation and data assessment of the chemical speciation network.

Summary: 2015 North American Amendment Proposal to Control Hydrofluorocarbons

This document provides a summary of the Amendment Proposal.

Transitioning to Low-GWP Alternatives in Motor Vehicle Air Conditioning Systems

This fact sheet provides information on low-GWP alternatives in newly manufactured motor vehicle air conditioning systems. It discusses HFC alternatives, market trends, challenges to market entry for alternatives, and potential solutions.

Quality Assurance (2016 NAAMC)

Presentations related to ambient air monitoring quality assurance programs and guidance

Sources and Solutions: Fossil Fuels

Fossil fuel use in power generation, transportation and energy emits nitrogen pollution to the air that gets in the water through air deposition.

Sources and Solutions: Wastewater

Wastewater treatment plants process water from homes and businesses, which contains nitrogen and phosphorus from human waste, food and certain soaps and detergents, and they can be a major source of nutrient pollution.

Rodent Control Pesticide Safety Review

EPA completed a safety review in 2008 of rat and mouse poison products. Many companies' products have our safety measures that reduce risks to humans, pets, and non-target wildlife. Products must be sold with bait stations that securely contain the poison.