Through this action EPA is making a determination that requiring the use of gas impermeable tarps to control emissions of the pesticide methyl bromide is not appropriate under section 608(a)(2) of the Clean Air Act (CAA or Act) at this time. This determination is based on a review of currently available studies and field data on the use of tarps, particularly gas impermeable tarps, to reduce methyl bromide emissions from soil fumigation in the period prior to January 1, 2001. Methyl bromide depletes stratospheric ozone, which protects the earth from harmful ultraviolet radiation, and existing CAA regulations call for U.S. production and importation of methyl bromide to cease by January of 2001. EPA is also announcing the availability of its report, ``Feasibility of Using Gas Impermeable Tarps to Reduce Methyl Bromide Emissions associated with Soil Fumigation in the United States,'' dated January 26, 1998, which provides the analysis upon which EPA's determination is based.