EPA established a no discharge zone for the marine waters of California for sewage discharges from large passenger and oceangoing vessels 300 gross tons or greater.

EPA announced the availability of its draft inventory on greenhouse gas emissions and sinks for the period 1990-2010.

In re Oil Spill by the Oil Rig Deepwater Horizon, No. MDL 2179 (E.D. La. Feb. 17, 2012). A settling CWA defendant responsible for the discharge of oil into the Gulf of Mexico must pay a $45 million civil penalty to the United States and $25 million to the states of Alabama, Florida, Louisiana, Mississippi, and Texas and must perform supplemental environmental projects valued at $20 million in the Gulf states. 

EPA, due to significant changes, reproposed confidentiality determinations for the data elements in the petroleum and natural gas systems category of the Mandatory Reporting of Greenhouse Gases Rule; the Agency also deferred the reporting deadline to March 31, 2015, among other amendments.

EPA, due to significant changes, re-proposed confidentiality determinations for the data elements in the electronics manufacturing source category of the Mandatory Reporting of Greenhouse Gases Rule; the Agency also proposed amendments regarding the calculation and reporting of emissions from facilities that use best available monitoring methods.

EPA made technical revisions to the electronics manufacturing source category of the Greenhouse Gas Reporting Rule related to fluorinated heat transfer fluids.