The American Coal Ash Association, established in 1968, is a nonprofit trade association devoted to recycling the materials created when we burn coal to generate electricity. Our members comprise the world's foremost experts on coal ash (fly ash and bottom ash), and boiler slag, flue gas desulfurization gypsum (FGD or "synthetic" gypsum), and other flue gas materials captured by emissions controls.

Mark your calendars and save these dates.

ACAA 2018 Fall Meeting will be held in New Orleans, LA on October 2-3, 2018.

2018 Ponded Ash, Harvesting and Beneficiation Workshop in Louisville, KY on October 30-31, 2018.

ACAA 2019 Winter Meeting will be held in Houston, TX on January 29-30, 2019.

World Of Coal Ash 2019 will be held in St. Louis, MO on May 13-16, 2019.

Committee Conference Calls Now on Demand

ACAA members can now catch up on recordings of committee conference calls they miss by visiting this page.

ACAA 2018 Winter Membership Meeting

Click here for the meeting presentations.


Welcome ACAA's Newest Members

CALM Initiative, (Associate Member)

RJ Smith Construction, (Associate Member)

Tetra Tech, (Associate Member)

Hallaton, (Associate Member)

ZAG International, (Marketer Member)

 Enviro-Sense, LLC (Associate Member)

Industrial Development Advantage, LLC, (Associate Member)

 HDR (Associate Member) 

Please click here for our full member list!