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

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ALL4’s: Is That Your Final Answer?

Posted: May 28th, 2012

Test your knowledge across the environmental field, on the building blocks of air quality rules, on ALL4 general trivia, and with brain teasers that have perplexed us…Take on ALL4’s Is That Your Final Answer?

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“Soft” Engine Certification?

Posted: May 25th, 2012

I came across an interesting little tidbit recently during an engine permitting exercise here in Pennsylvania.  A facility was seeking air quality permitting for a number of existing emergency generators each driven by a ~3,000 brake horsepower (bhp), diesel fuel-fired, U.S. EPA Tier II certified engine.

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Browsing the ADI Updates

Posted: May 25th, 2012

From time-to-time, U.S. EPA will publish a Federal Register notice announcing updates to the Applicability Determination Index (ADI).  The ADI is a searchable database that contains memoranda issued by U.S. EPA…

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Area Source Boiler MACT Reminder

Posted: May 21st, 2012

The Area Source Boiler MACT (ASBM) rule became effective on May 20, 2011, with a compliance date of March 21, 2014 for all existing boilers located at area sources of hazardous air pollutant (HAP) emissions.  Initial notifications were due

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Your Recipe For a Good Non-Hazardous Secondary Waste Determination

Posted: May 21st, 2012

In our last blog we talked about the need to be careful about the “ingredients” that make up the recipe of your alternate fuel so that you can be assured that you are firing a non-waste per the non hazardous secondary materials (NHSM) rule.  How well you track your ingredients is part of a NHSM determination demonstration that includes the legitimacy criteria which are specified under 40 CFR Part 241.3(d)(1).

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So You Operate A CISWI Unit – What’s The Good News?

Posted: May 14th, 2012

Recall the March 2011 proposed Non-Hazardous Secondary Materials (NHSM), Commercial and Industrial Solid Waste Incineration (CISWI), and National Emission Standards for Hazardous Air Pollutants for Major Sources: Industrial, Commercial, and Institutional Boilers and Process Heaters (Boiler MACT) rules.  A major concern for owners and operators

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