Items of Interest

Check out the APTI-Learn Learning 
Management System at You can access the course calendar that includes special courses and workshop offerings as well as access the self-instructional courses. We encourage you to sign-up for the new system and check it out.

Coming Events

Register Now


NACT 335 Environmental Compliance & Enforcement - October 24-26, 2017

2017 MARAMA Air Quality Monitoring Training Workshop - November 1-3, 2017

CMS Data Webinar Series - November 9 & 16, December 7 & 14, 2017


See all training and events 

Recent Emissions Inventory


May 2015 - MARAMA has posted new CONUS 2.5 Electric Generation Unit (EGU) projections for 2017, 2018, 2019, 2021, 2023, 2028 and 2030.  Files are located here

June 2015 - MARAMA has posted the MARAMA BETA 2011 inventory with projection to 2017. That information is located here.


Mid-Atlantic Diesel Collaborative

logo_madcThe Mid-Atlantic Diesel Collaborative is a partnership between leaders from federal, state, and local government, the private sector, and environmental groups in Delaware, Maryland, Virginia, Pennsylvania, West Virginia and the District of Columbia.   The Collaborative is part of an overall national campaign to reduce diesel emissions.

Current Air Quality offers daily AQI forecasts and real-time AQI conditions for over 300 cities across the US. Visit site >