4 The record articles

4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.

Categories:

PADEP Provides Technical Guidance on Waste Derived Liquid Fuels

Posted: November 16th, 2009

The Pennsylvania Department of Environmental Protection (PADEP) has finalized revisions to Technical Guidance Document No. 275-2101-009 regarding Waste Derived Liquid Fuels (WDLFs).  The requirements in the technical guidance document are for guidance purposes only and are not meant to be […]

Read article

U.S. EPA Finalizes Flexible Permit Rule (Again)

Posted: October 26th, 2009

On October 6, 2009, U.S. EPA finalized a flexible permitting rule that was initially proposed on September 12, 2007 (see our February 2008 4 The Record article for an analysis of the proposed rule).  The rule was previously finalized on January 13, 2009, […]

Read article

U.S. EPA’s Final PM2.5 Designations

Posted: October 6th, 2009

U.S. EPA has promulgated the final nonattainment area designations for the 24-hour National Ambient Air Quality Standard (NAAQS) for particulate matter with an aerodynamic diameter of less than 2.5 microns (PM2.5).  PM2.5 is a regulated air pollutant with annual and […]

Read article

Proposed Revision to NO2 NAAQS Could Pose Problems Under PSD

Posted: August 23rd, 2009

In the July 2009 issue of 4 The Record, ALL4 included a summary of U.S. EPA’s announcement concerning a proposed new short-term (1-hour) National Ambient Air Quality Standard (NAAQS) for nitrogen dioxide (NO2).  The proposed standard will likely range between 150 µg/m3 and 188 µg/m3.  […]

Read article

Update: PM2.5 New Source Review Regulations

Posted: August 18th, 2009

On May 16, 2008 U.S. EPA issued a final rule amending the New Source Review (NSR) regulations to add requirements related to particulate matter with an aerodynamic diameter of less than 2.5 microns (PM2.5).  ALL4’s PM2.5 Team published 4 The Record articles […]

Read article

U.S. EPA Proposes Ozone Season Extension

Posted: August 14th, 2009

On July 16, 2009, U.S. EPA proposed revisions to its ambient ozone (O3) monitoring network design requirements.  The revisions are in response to the amended primary and secondary National Ambient Air Quality Standards (NAAQS) for O3 that were promulgated on […]

Read article

    4 THE RECORD EMAIL SUBSCRIPTIONS

    Sign up to receive 4 THE RECORD articles here. You'll get timely articles on current environmental, health, and safety regulatory topics as well as updates on webinars and training events.
    First Name: *
    Last Name: *
    Location: *
    Email: *

    Skip to content