Our Mission: to enhance and promote effective State and Territorial programs and to affect relevant national policies for waste and materials management, environmentally sustainable practices, and environmental restoration.

Upcoming Events

Mid-Year Meeting Registration Closed

Conference on EPA and the Future of Environmental Protection

As the EPA’s 50th anniversary approaches, this conference will consider EPA’s role in meeting future environmental challenges. Featured speakers include William K. Reilly and Gina McCarthy, former EPA Administrators, Robert Perciasepe, President of the Center for Climate and Energy Solutions, Ben Grumbles, Maryland’s Secretary of the Department of the Environment, and Denis Hayes, Founder of the Earth Day Network and President of the Bullitt Foundation. This event is hosted by and at American University (on April 23-24, 2019) in cooperation with the EPA Alumni Association and the Environmental Law Institute. Learn more here.

Disclaimer: ASTSWMO doesn’t have funding to attend this event. We are strictly helping AU and EPA to promote the event.

Recent Publications

State environmental associations respond to EPA’s PFAS Action Plan April 2019 (4/5/2019)- We appreciate the U.S. Environmental Protection Agency’s (EPA’s) development of its Per-and Polyfluoroalkyl Substances (PFAS) Action Plan in response to… ... Read More
Radiation Task Force TENORM Webinar (2/25/2019)- The ASTSWMO Radiation Task Force presented a webinar on February 14, 2019 that highlighted their 2018 guidance document, “Waste Generation… ... Read More
Great Lakes Partnership Principles for Enhancing Habitat at Sediment Remediation Sites (2/7/2019)- The Great Lakes Legacy Act exemplifies a unique approach for accelerating sediment cleanup and restoring habitat in the largest system… ... Read More

Recent News

  • The EPA final rule, Management Standards for Hazardous Waste Pharmaceuticals and Amendment to the P075 Listing for Nicotine, was published in the Federal Register on February 22, 2019. The effective date of the rule is August 21, 2019. Additional information, including a recording of the February 14, 2019 EPA webinar on the rule, can be found on the EPA final rule webpage.


Click here to view our most recent newsletter. To see our previous newsletters follow this link. To be added to our newsletter please fill out our contact form on our Contact Us page.



ASTSWMO was incorporated in 1974, and has maintained a full time office in Washington, DC, since 1980. The Association holds two general membership meetings each year, and a number of specialized roundtables, workshops or conferences for specific program areas of high interest. The Association also provides a steady flow of services and information to our members along program specific lines throughout the year. We work closely with the U.S. Environmental Protection Agency to ensure that our members are aware of the most current developments related to their programs and coordinate the work of our State regulators with that of their federal counterparts. The Association also represents the interests of our members in Washington, DC. While no single entity can speak for all State waste programs, the capability of consolidating similar views and ensuring that State managers have the opportunity to speak in unison on important waste management issues assists their ability to influence national decision-making. ASTSWMO's most important role is to assist States in learning from and working with other State peers. Within the Association it is an axiom that States learn best from other States in matters of program implementation, and ASTSWMO's collective efforts are all focused on making that happen.
ASTSWMO added 9 new photos.
Thank you to Dania Rodriguez for representing ASTSWMO
ASTSWMO added 47 new photos — in Bethesda, Maryland.
ASTSWMO is with Charles Reyes.
Opening of the PFAs National Summit
ASTSWMO added 22 new photos.
National tanks conference planning meeting.
ASTSWMO added 4 new photos — in Sedona, Arizona.


Great turnout here at Region 4 EPA-State Directors meeting in Raleigh! Thanks @NCDEQ Haz Waste for hosting!! https://t.co/7YJambWZYk ASTSWMO photo

Look what we are doing! Strategic planning!! https://t.co/vHnn4W8yLT ASTSWMO photo

@ASTSWMO⁩ & ⁦ @ECOStates⁩ representing the States & Territories for #AmericaRecyclesDay https://t.co/3auHXNZJkh ASTSWMO photo

Hey USA!! Do you recycle?? Let’s all do our part to increase recycling!!! #AmericaRecyclesDay https://t.co/gqrRFt33Qa
U.S. EPA Region 10 @EPAnorthwest
Nov. 15th is #AmericaRecyclesDay. #RecycleRight by knowing which items are and aren't recycled by your local recycler. #ReduceReuseRecycle https://t.co/zh7YY39UBb

Become a Member

To become a member please download, review, and fill out the form below. When you complete it please email it to the appropriate ASTSWMO staff (listed at the top the form).

New Member Form

Members in Action Guidance Document

Lifetime Achievement Award

In 2002, ASTSWMO instituted the ASTSWMO Lifetime Achievement Award, to recognize an outstanding individual who has worked in State government in the areas of solid and hazardous waste management, sustainability/materials management, underground storage tanks, or contaminated site clean-up.

The purpose of the award is to recognize work done on behalf of the States and in furtherance of ASTSWMO’s mission to enhance and promote effective State and Territorial programs for waste and materials management, to encourage environmentally sustainable practices, and to affect relevant national waste and materials management policies.

Click here for the full description and a list of past winners.