Trunkline Gas Company

First Revised Volume No. 1

Effective Date: 01/14/1999, Docket: RP99-182-000, Status: Effective

Seventh Revised Sheet No. 216 Seventh Revised Sheet No. 216 : Effective

Superseding: Sixth Revised Sheet No. 216

GENERAL TERMS AND CONDITIONS

(Continued)

20. GAS RESEARCH INSTITUTE (GRI) SURCHARGE PROVISION

20.1 Purpose

GRI, an Illinois not for profit corporation, has been

organized for the purpose of sponsoring Research, Development,

and Demonstration (RD&D) programs in the field of natural and

manufactured Gas for the purpose of assisting all segments of the

Gas industry in providing adequate, reliable, safe, economic, and

environmentally acceptable Gas service for the benefit of Gas

consumers and the general public in the United States. Trunkline

is a collection agent for GRI.

For the purpose of funding of GRI's approved expenditures, this

Section 20 establishes a GRI Surcharge which shall be collected

for Quantities transported under Rate Schedules FT, SST, EFT, QNT,

LFT, FFZ, IT and QNIT of this FERC Gas Tariff; provided, however,

such surcharge shall not be applicable to discounted transactions,

except as expressly provided below, to Shippers which are

interstate pipelines and that include in their rates a charge for

RD&D by GRI, to the transportation of liquids and/or liquefiables

or to service which is solely gathering service and provided,

further, that a GRI Surcharge shall not be applied to the same

Quantity of Gas more than once.

20.2 Basis of the GRI Surcharge

Rate Schedules FT, SST, EFT, QNT, LFT, FFZ, IT and QNIT shall

include an increment for a GRI Reservation Surcharge and a GRI

Commodity Surcharge for non-discounted transactions as stated on

the effective Tariff Sheet Nos. 6, 7, 8, 9, 9A, 9B, 10 and 10A.

As to discounted commodity rates, if the discount is less than the

GRI Surcharge, Trunkline shall remit that portion of the GRI

Surcharge actually collected. Such GRI Surcharge shall be that

increment, adjusted to Trunkline's measurement basis, which has

been approved by Federal Energy Regulatory Commission orders

approving GRI's RD&D expenditures. For purposes of discounting,

any GRI Surcharge shall be considered to be the first component of

rates discounted. For firm Shippers without a historical load

factor, for purposes of the GRI