Distrigas of Massachusetts Corporation

First Revised Volume No. 1

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Effective Date: 12/17/1988, Docket: GT94- 26-000, Status: Effective

First Revised Sheet No. 50 First Revised Sheet No. 50 : Superseded

Superseding: Original Sheet No. 50

15.1.4 To the extent possible, curtailed quantities will

be reinstated by Seller to Buyer on a non-discriminatory basis as

soon as possible during the applicable contractual service

period.

15.1.5 Seller reserves the right, on an emergency basis

and in a non-discriminatory manner consistent with Part 281 of

the Commission's regulations (18 C.F.R. 281.103 et seq.), to

modify pro rata curtailments to the extent required by Title IV

of the Natural Gas Policy Act of 1978 ("NPGA") in order to avoid

curtailment of:

a. high priority uses as defined by Section 401(f)

(2) of the NGPA, 15 U.S.C. 3391(f) (2);

b. essential agricultural uses as defined by Section

401(f)(1) of the NGPA, 15 U.S.C. 3391(f)(1); or

c. any essential industrial process or feedstock use

below the essential industrial use requirements as defined in

Section 402(d) (1) of the NGPA, 15 U.S.C. 3392(d) (1).

15.1.6 DOMAC will not exercise its rights under Section

15.1.5 until:

a. it has issued a notice of pro rata curtailment as

to the volume to be curtailed on pro rata basis;

b. it has requested and received a certification from

customer(s) of the extent that pro rata curtailment under Section

15.1.3 would cause curtailment of the uses listed in Section

15.1.5 or 24 hours has passed since DOMAC's request for

certification without DOMAC's receipt of such certification; and

c. DOMAC issues notice of the change in the pro rata

curtailment due to the notification(s) in Section 15.1.6(b).