The National Ready Mixed Concrete Association released a report last week finding that the use of fly ash from coal combustion continues to increase steadily. The report, The 2012 NRMCA Supplementary Cementitious Materials Use Survey, concluded that cement and concrete applications offer the greatest potential for increased use of the material. The Environmental Protection Agency is currently considering whether to regulate coal ash under Subtitle C of the Resource Conservation and Recovery Act, subjecting it to hazardous waste regulations, or as a nonhazardous waste under Subtitle D. The agency suggested October 11 that it would take more than a year to finalize the rule on coal ash management.