RCRA Rule Project for Parts of EPA Clusters XXI – XXIII – Adoption of RCRA Rule amendments to revise treatment standards for carbamate wastes and to allow conditional exemptions from the definition of hazardous waste for solvent-contaminated wipes and carbon injected for oil and gas recovery. A public hearing for these rules will be held September 16, 2014. The public comment period will end September 22, 2014.