The use of propane, or materials under high pressure are not permitted within the I-X Center unless as an approved activity or exhibit. Propane storage is confined to areas outside the loading dock. All activities and/or exhibits with propane or materials under high pressure require a minimum of seventy-two (72) hour advance notice, prior to the first Event date, for review and written approval from the Event Manager and Cleveland Fire Marshal (if applicable). An on-site Cleveland Fire Specialist may be required, and charges will be applied to the final invoice at prevailing rates.