ROP

The Rate of Progress (ROP) documents the control strategies a State is implementing to reduce emissions of ozone precursors.

RFP

The Reasonable Further Progress (RFP) Annual incremental reductions in air pollutant emissions as reflected in a State Implementation Plan that EPA deems sufficient to provide for the attainment of the applicable national ambient air quality standards by the statutory...

RFG

Reformulated Gasoline (RFG) is gasoline blended to burn more cleanly than conventional gasoline and to reduce smog-forming and toxic pollutants in the air we breathe.

RES

Renewable Energy Sources (RES) are biomass, hydro-power, geothermal, wind, and solar which provide 8% of the energy used in the United States.

RCRA

The Resource Conservation and Recovery Act (RCRA) gives EPA the authority to control hazardous waste from the “cradle-to-grave.” This includes the generation, transportation, treatment, storage, and disposal of hazardous waste.