Air Alerts and Regulatory Updates

Cornerstone closely tracks new and revised EPA regulations and periodically issues alerts and regulatory updates to advise its clients and others on how to comply with the rules.

Bookmark this page and return frequently for guidance, updates, and responses to frequently asked questions.

July 31, 2011

Air Alert – EPA defers “Tailoring Rule” requirements for CO₂ emissions from bioenergy and other biogenic sources

EPA recently issued a final rule to defer for 3 years the application of Prevention of Significant Deterioration (PSD) and Title V Tailoring Rule permitting requirements to biogenic carbon dioxide (CO₂) emissions from bioenergy and other biogenic stationary sources.

This means landfill owners will not have to account for CO₂ from flares and engines at landfill sites until the year 2014. To read EPA’s fact sheet on this change to the Tailoring rule, visit EPA.gov.

April 15, 2011

New tailoring rule expected to bring many more landfills into major NSR PSD permitting

The U.S. Environmental Protection Agency (EPA) recently finalized the Prevention of Significant Deterioration (PSD) and Title V Greenhouse Gas Tailoring Rule, which requires certain stationary emission sources to comply with the Title V and New Source Review PSD provisions of the Clean Air Act (CAA), based on their GHG emissions. 

Click here for more information, including a flysheet summarizing the Tailoring Rule, a table showing regulatory dates, requirements, and specific steps that must be taken.

January 21, 2010

MSW Landfill Mandatory GHG Reporting Rule updates

EPA has recently issued mandatory greenhouse gas (GHG) emissions reporting rules. Under the new rules, which became effective in January 2010, owners or operators of many municipal solid waste (MSW) landfills must report emissions from MSW landfills.

EPA has answered several longstanding questions in its new FAQ document, Mandatory Reporting of Greenhouse Gases Rule New Frequently Asked Questions: Subpart HH, Landfills. In addition, USEPA has provided a template document for a best available monitoring methods extension request.