The Environmental Protection Agency announced on Friday the first national regulations for the safe disposal of coal ash from power plants.
The new rules categorize coal ash as a nonhazardous waste.
"These strong safeguards will protect drinking water from contamination, air from coal ash dust and our communities from structural failures, while providing facilities a practical approach for implementation," EPA Administrator Gina McCarthy said in a release.
The regulations include the closure of landfills and certain other facilities that do not meet construction standards. Other rules include stricter protection of groundwater and prevention of waste facility construction in sensitive areas such as wetlands and earthquake zones.
With the new rules, the EPA said it is working toward greater reuse of coal ash. Nearly 40 percent of all coal ash produced was beneficially used in 2012, the agency said.