21 C.F.R. § 25.60
(a) In accordance with Executive Order 12114, “Environmental Effects Abroad of Major Federal Actions” of January 4, 1979 (44 FR 1957, January 9, 1979), the responsible agency official, in analyzing actions under his or her program, shall consider the environmental effects abroad, including whether the actions involve:
(c) If the responsible agency official determines that an action may have a significant environmental effect abroad, the responsible agency official shall determine, in accordance with section 2-4 (a) and (b) of the Executive Order, whether the subject action calls for:
(d) In preparing environmental documents under this subpart, the responsible official shall: