Revisions to the California State Implementation Plan; South Coast Air Quality Management District; Control of Oxides of Nitrogen Emissions From Off-Road Diesel Vehicles

The Environmental Protection Agency (EPA) is taking final action to approve South Coast Air Quality Management District (SCAQMD or ``the District'') Rule 2449, Control of Oxides of Nitrogen Emissions from Off-Road Diesel Vehicles, as a revision to the SCAQMD portion of the California State Implementation Plan (SIP). SCAQMD Rule 2449 adopts by reference title 13, chapter 9, section 2449.2 of the California Code of Regulations, ``Surplus Off-Road Opt-In for NOX (SOON) Program.'' SCAQMD Rule 2449 requires certain in-use off-road vehicle fleets to meet more stringent requirements in the South Coast area when funding is provided by the District in order to achieve additional reductions of oxides of nitrogen (NOX).