Approval and Promulgation of Air Quality Implementation Plans; Massachusetts; Amendment to Massachusetts' SIP (for Ozone and for Carbon Monoxide) for Transit Systems Improvements and High Occupancy Vehicle Facilities in the Metropolitan Boston Air Pollution Control District

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EPA is proposing to approve a State Implementation Plan (SIP) revision submitted by the Commonwealth of Massachusetts. This revision provides for the Commonwealth of Massachusetts' Executive Office of Transportation and Construction to construct and operate specified transit facilities and high occupancy vehicle (HOV) lanes established therein. Implementation of the defined transportation projects will help reduce the use of automobiles, provide for additional transit facilities in the Metropolitan Boston Region, and improve traffic operations on the region's roadways, resulting in improved air quality. This action should have a beneficial effect on air quality because it is intended to reduce vehicle miles traveled (VMT) in the Boston Metropolitan Area. The emissions to be reduced include hydrocarbons (ground-level ozone precursors) and carbon monoxide (CO). This action is being taken under section 110(a) and (l) of the Clean Air Act. DATES: Comments must be received on or before February 18, 1994.