Specifications include, but are not limited to: servicing and maintaining Ingersoll Rand Air Dryer System and Desiccant Air Dryer System. This system is in a secured area and a MaineDOT employee shall be present. The Contractor shall perform work only during the following times – Monday through Friday from 8:00 am through 2:00 pm, except for the Contractor may not perform work on state holidays nor state government closure days. ; The dryer systems are Ingersoll Rand and only trained and qualified technicians by Ingersoll Rand or on similar equipment will be allowed to work on this critical equipment. The Contractor must be able to be notified and the necessary personnel and equipment mobilized and be on site within 24 hours or less when MaineDOT has determined an emergency.