With this action EPA is authorizing the use of 610,665 kilograms of methyl bromide for supplemental critical uses in 2005 through the allocation of additional critical stock allowances (CSAs). This allocation supplements the critical use allowances (CUAs) and CSAs previously allocated for 2005, as published in the Federal Register on December 23, 2004 (69 FR 76982). Further, EPA is amending the existing list of exempted critical uses to add uses authorized by the Parties to the Montreal Protocol at their Sixteenth Meeting in November 2004. Today's action is authorized under the Clean Air Act (CAA or the Act) and is in accordance with the Montreal Protocol on Substances that Deplete the Ozone Layer (Protocol).