EPA is finalizing uses that qualify for the 2011 critical use exemption and the amount of methyl bromide that may be produced, imported, or supplied from existing pre-phaseout inventory for those uses in 2011. EPA is taking this action under the authority of the Clean Air Act to reflect a recent consensus decision taken by the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer at the Twenty-First Meeting of the Parties.