Paving/storm drain: construct storm drains in accordance with montgomery county standards and specifications and approved plans. Prior to placement fo any curb & gutter or pavement all utility crossings must be certified as being in place. Construct concrete sidewalk, concrete curb and gutter, driveway aprons, sidewalk and street paving as per approved montgomery county standards and specifications and approved plans. Install street lights in accordance with plans to be aprpoved by the division of traffic engieering and operations, montgomery county department of transportation. Plant street trees in accordance with montgomery county code, sec. 49-35(j)(i).