(a) Maintenance service requests may be made by telephone or e-mail to the Commission or through the Commission Facilities Service Center website located at http://portal.tfc.state.tx.us/fcsm/facilityfrontpage.asp. Requestor shall give his name, telephone number, location, nature of the maintenance service required, and assessment of the priority of the requirement, i.e., emergency, at first opportunity, or include in regular maintenance schedule.(b) Facilities on the Commission's inventory may not be modified except by or under the control of the Commission.(c) Requests for modifications of space in state-owned facilities under the Commission's control shall be made through the Commission Facilities Service Center website located at http://portal.tfc.state.tx.us/fcsm/facilityfrontpage.asp.(d) Modifications or improvements to buildings carried on the Commission's inventory that become attached to and considered a part of the building may not be removed by the occupying agency without the Commission's approval.(e) Equipment that is used specifically for the occupying agency's work process is the agency's responsibility to maintain.