Specifications include, but are not limited to: a) Entirely enclosed, weatherproofed, and completely insulated to at least an R11 rating. (b) Finished inside and outside in compliance with Maryland Building Codes. (c) A ceiling height of at least 7 ft. (d) A 4 ft x 1 ft sign with the message “ENGINEERS OFFICE – MDOT STATE HIGHWAY ADMINISTRATION” attached to or mounted in front of the office. The sign shall have a black background and have white lettering at least 3 in. high. (e) A 5 in. x 7 in. no smoking sign posted on the outside of each entrance to the office, plant laboratory, and mobile housing unit. (f) Interior and exterior doors equipped with different key locks. Interior doors keyed alike. Exterior doors keyed alike. An additional dead bolt lock for each exterior door. Four keys for each interior and exterior lock. (g) Operable windows with latches, screens, and venetian blinds or shades. (h) Wired in accordance with the National Electrical Code, with lighting to provide an illumination level of at least 75 ft-c. (i) Equipment capable of heating the office to at least 70 F and cooling to at least 78 F. (j) Sanitary restroom facilities located within or near the field office, to include toilet and hand-washing fixtures of adequate quantity to accommodate the number of persons on site. If the field office is within a permanent building, the restroom shall include hot and cold potable water, hand soap, and hand towels or air dryers. For a mobile type office without plumbing, provide sanitary potable toilets on site with waterless hand soap dispenser. The restroom facilities shall have locking doors and provide sufficient privacy. (k) Complete all utility connections and pay utility usage costs.