Each facility shall be furnished with an approved wet NFPA 14 Class III standpipe and hose system (located to permit quick deployment to all inmate occupied areas) for use by fire department personnel and staff. Partial or complete automatic fire sprinkler systems with appropriate sprinkler heads may be provided. Facilities equipped with complete automatic fire sprinkler systems, in accordance with NFPA 13, may reduce the system to an NFPA Class I system. A one inch noncollapsible hose and reel system may be used in lieu of the one and one-half inch collapsible hose when approved by local fire officials. Existing facilities may request a variance from this requirement.