Code of Federal Regulations Title 33. Navigation and Navigable Waters § 33.5.48 Marking of aircraft

(a) Aircraft owned by members of the Auxiliary or that are personal property of the Auxiliary may also display the Auxiliary emblem on both sides of the vertical stabilizer (outside of the stabilizer for twin tail aircraft) or on both sides of the fuselage aft of the wing.

(b) Aircraft which are accepted as facilities may be marked with the Auxiliary mark (§ 5.43) and/or the word “RESCUE” on the underside of the wing or fuselage for easier identification from the ground.