Environmental Protection Agency OIG

Without clear and enforceable limitations in synthetic-minor-source permits, facilities may emit excess pollution that would otherwise subject them to the more stringent requirements of the Clean Air Act major-source permitting programs.

Delays in EPA SIP actions increase the risk that state or local air agencies are not implementing plans sufficient to achieve or maintain the NAAQS.

This report examines the EPA’s activities to oversee mobile source compliance with clean air laws and regulations during the coronavirus pandemic. It highlights National Vehicle and Fuel Emissions Laboratory’s efforts to minimize the potential for noncompliance during the pandemic and the importance...

This Semiannual Report to Congress reflects how the EPA OIG is achieving its mission of preventing and detecting fraud, waste, abuse, mismanagement, and misconduct related to the programs and operations of the U.S. Environmental Protection Agency and the U.S. Chemical Safety and Hazard Investigation...

The EPA needs to document and follow established procedures to ensure scientifically sound decisions regarding pesticides.

Improved review methods when considering the allowability of costs for grant funds will aid the EPA in identifying estimated improper payments.

A decline in the EPA's enforcement activities may expose the public and the environment to undetected harmful pollutants.

Safety, health, and attrition issues may compromise NEIC’s ability to support the EPA’s civil and criminal enforcement efforts.

The EPA and states can reduce the volume of trash, including plastics, in U.S. waterways by evaluating barriers to implementing the Clean Water Act and developing strategies to overcome those barriers.