14 C.F.R. § 91.857 Stage 2 operations outside of the 48 contiguous United States.
Title 14 - Aeronautics and Space
An operator of a Stage 2 airplane that is operating only between points outside the contiguous United States on or after November 5, 1990, must include in its operations specifications a statement that such airplane may not be used to provide air transportation to or from any airport in the contiguous United States. [Doc. No. FAA–2002–12771, 67 FR 46571, July 15, 2002]
Title 14: Aeronautics and Space
PART 91—GENERAL OPERATING AND FLIGHT RULES
Subpart I—Operating Noise Limits
§ 91.857 Stage 2 operations outside of the 48 contiguous United States.

