With this rulemaking, EPA is taking final action to amend the accelerated phaseout regulations that govern the production, import, export, transformation and destruction of substances that deplete the ozone layer under the authority of Title VI of the Clean Air Act Amendments of 1990 (CAA or the Act). Today's amendments incorporate an exemption permitted under the Montreal Protocol on Substances that Deplete the Ozone Layer (Protocol) and required by changes in Title VI of the CAA. Specifically, EPA is creating an exemption from the consumption and production phaseout for quantities of Class I, Group VI controlled substances (methyl bromide) that are used for quarantine and preshipment.