A. Except as set forth below, aircraft fuel shall not be handled within any hangar or building.
B. Private aircraft may be fueled within those hangars specifically designed and used solely for the storage of a single aircraft and having no sources of ignition (i.e., no electrical or open flame devices).
(Res. No. 149 75-76 (part), Res. No. 68 86-87 §1 (part))