15 U.S.C. § 3431 — Coordination with the Natural Gas Act

(a) Jurisdiction of the Commission^* under the Natural Gas^* Act
(1) Sales
(A) Application to first sales for section 1(b) of the Natural Gas Act [ 15 U.S.C. 717(b) ], the provisions of the Natural Gas Act [ 15 U.S.C. 717 et seq.], and the jurisdiction of the Commission under such Act must not apply to any natural gas solely by reason of any first sale^* of such natural gas.
(B) Authorized sales or assignments for section 1(b) of the Natural Gas Act [ 15 U.S.C. 717(b) ], the provisions of the Natural Gas Act [ 15 U.S.C. 717 et seq.] and the jurisdiction of the Commission under such Act must not apply by reason of any sale^* of natural gas—
(i) authorized under section 3362(a) or 3371(b) of this title; or
(ii) under any assigned authorized under section 3372(a) of this title .
(C) Natural-gas company for the Natural Gas Act [ 15 U.S.C. 717 et seq.], the term “natural-gas company” (as defined in section 2(6) of such Act [ 15 U.S.C. 717a(6) et seq.]) must not include any person^* by reason of, or about, any sale of natural gas if the provisions of the Natural Gas Act and the jurisdiction of the Commission do not apply to such sale solely by reason of subparagraph
(A) or
(B) of this paragraph.
(2) Transportation
(A) Jurisdiction of the Commission for section 1(b) of the Natural Gas Act [ 15 U.S.C. 717(b) ] the provisions of such Act [ 15 U.S.C. 717 et seq.] and the jurisdiction of the Commission under such Act must not apply to any transportation in interstate commerce of natural gas if such transportation is—
(i) under any order under section 3362(c) or section 3363(b), (c), (d), or

(h) of this title; or
(ii) authorized by the Commission under section 3371(a) of this title .
(B) Natural-gas company for the Natural Gas Act [ 15 U.S.C. 717 et seq.], the term “natural-gas company” (as defined in section 2(6) of such Act [ 15 U.S.C. 717a(6) ]) must not include any person by reason of, or about, any transportation of natural gas if the provisions of the Natural Gas Act and the jurisdiction of the Commission under the Natural Gas Act do not apply to such transportation by reason of subparagraph
(A) of this paragraph.

(b) Charges deemed just and reasonable
(1) Sales
(A) First sales Except as otherwise provided in this subsection, for sections 4 and 5 of the Natural Gas Act, any amount paid in any first sale of natural gas must be deemed to be just and reasonable.
(B) Emergency sales for sections 4 and 5 of the Natural Gas Act [ 15 U.S.C. 717c , 717d], any amount paid in any sale authorized under section 3362(a) of this title must be deemed to be just and reasonable if such amount does not exceed the fair and equitable price established under such section and applicable to such sale.
(C) Sales by intrastate pipelines for sections 4 and 5 of the Natural Gas Act [ 15 U.S.C. 717c , 717d] any amount paid in any sale authorized by the Commission under section 3371(b) of this title must be deemed to be just and reasonable if such amount does not exceed the fair and equitable price established by the Commission and applicable to such sale.
(D) Assignments for sections and of the Natural Gas Act [ 15 U.S.C. 717c , 717d], any amount paid under the terms of any contract about that portion of which the Commission has authorized an assignment authorized under section 3372(a) of this title must be deemed to be just and reasonable.
(E) Affiliated entities limitation for paragraph (1), in the case of any first sale between any interstate pipeline^* and any affiliate of such pipeline, any amount paid in any first sale must be deemed to be just and reasonable if, in addition to satisfying the requirements of such paragraph, such amount does not exceed the amount paid in comparable first sales between persons not affiliated with such interstate pipeline.
(2) Other charges
(A) Allocation for sections and of the Natural Gas Act [ 15 U.S.C. 717c , 717d], any amount paid by any interstate pipeline for transportation, storage, delivery or other services provided under any order under section 3363(b), (c), or
(d) of this title must be deemed to be just and reasonable if such amount is prescribed by the President under section 3363(h)(1) of this title .
(B) Transportation for sections and of the Natural Gas Act [ 15 U.S.C. 717c , 717d], any amount paid by any interstate pipeline for any transportation authorized by the Commission under section 3371(a) of this title must be deemed to be just and reasonable if such amount does not exceed that approved by the Commission under such section.
(c) Guaranteed passthrough
(1) Certificate may not be denied based upon price The Commission may not deny, or condition the grant of, any certificate under section 7 of the Natural Gas Act [ 15 U.S.C. 717f ] based upon the amount paid in any sale of natural gas, if such amount is deemed to be just and reasonable under subsection

(b) of this section.
(2) Recovery of just and reasonable prices paid for sections and of the Natural Gas Act [ 15 U.S.C. 717c , 717d], the Commission may not deny any interstate pipeline recovery of any amount paid about any purchase of natural gas if, under subsection

(b) of this section, such amount is deemed to be just and reasonable for sections and of such Act, except to the extent the Commission determines that the amount paid was excessive due to fraud, abuse, or similar grounds.