Specifications include, but are not limited to: The contractor shall comply with OEM requirements and no welds or holes as a result of the modification in the frame flanges or within 1 ¼” of the top of the flange or the bottom of the bottom flange on the web or radius of the frame. The contractors’ modifications shall comply with the Federal Motor Vehicle Safety Standards (FMVSS). The contractor must be certified by the National Traffic Safety Administration to manufacture to alter vehicles in accordance with the Code of Federal Regulations, Title 49, Parts 567-568. The contractor shall follow the floor layout as identified in Attachment #2. The following equipment is to remain as factory installed without modification: 77” Interior Headroom 69.8” Interior Width Curbside passenger side sliding door with a 63” opening height Dual swing open rear doors with a 59.8” door height and upper windows Driver and passenger dome lights