Lowest Achievable Emissions Rate

Lowest Achievable Emissions Rate is used by the Environmental Protection Agency

United States Environmental Protection Agency

The U.S. Environmental Protection Agency is an agency of the federal government of the United States charged with protecting human health and the environment, by writing and enforcing regulations based on laws passed by Congress...

 to determine if emissions from a new or modified major stationary source

Major stationary source

A major stationary source is a source that emits more than a certain amount of a pollutant as defined by the U.S. Environmental Protection Agency...

 are acceptable under SIP

State Implementation Plan

A State Implementation Plan is a United States state plan for complying with the federal Clean Air Act, administered by the Environmental Protection Agency...

guidelines.

"LAER" standards are required when a new, stationary source is located in a non-attainment air-quality region. It is the most stringent air pollution standard above the Best Available Control Technology (BACT) and Reasonably Available Control Technology (RACT) standards.

External links

• http://www.epa.gov/ttn/nsr/naa1/n26_8.html
• http://www.gastecheng.com/combustion.html
• http://www.epa.gov/ttncatc1/rblc/htm/welcome.html