EPA published its notice of availability of its final general National Pollutant Discharge Elimination System (NPDES) permit for discharges from offshore oil and gas exploration, development and production facilities in Federal waters off the Southern California coast. The permit applies to 23 existing development and production platforms and any new exploratory operations located in the Pacific Outer Continental Shelf. It requires operators to maintain an inventory of the quantities and concentration of the specific chemicals used “to formulate well treatment, completion and workover fluids.” It also requires oil and gas companies that are using hydraulic fracturing off the Southern California coast to include in their Discharge Monitoring Report (DMR)nany chemicals discharged into the ocean during the process. The final permit goes into effect on March 1, 2014.