Midcoast Interstate Transmission, Inc.

Second Revised Volume No. 1

Effective Date: 10/01/1997, Docket: GT97- 71-000, Status: Effective

First Revised Sheet No. 75 First Revised Sheet No. 75 : Effective

Superseding: ORIGINAL SHEET NO. 75

GENERAL TERMS AND CONDITIONS (continued)

2. QUALITY

2.1 Gas: The gas received by Transporter under this Tariff

shall be a combustible gas consisting wholly of, or a

mixture of:

(a) Natural gas of the quality and composition produced

in its natural state except as provided for in Sub-

section 2.2(a) herein;

(b) Gas generated by vaporization of Liquified Natural

Gas ("LNG"); or

essentially of hydrocarbons of the quality and

character produced by nature in the petroleum, oil,

and gas fields with physical properties such that

when the gases are commingled, they become

indistinguishable with respect to the physical

properties of the mixture.

2.2 Processing: The gas delivered hereunder shall be natural

gas; provided however, that:

(a) Transporter may extract or permit the extraction of

moisture, helium, natural gasoline, butane, propane,

or other hydrocarbons (except methane) from said

natural gas, or may return thereto any substance

extracted from it. Transporter, in order to conserve

and utilize other available gases, may blend such

gases with said natural gas. Provided, however, that

such blending shall not extend to a degree which, in

Transporter's judgment reasonably exercised, would

materially affect the utilization of the gas

delivered hereunder.

(b) Transporter may subject or permit the subjection of

said natural gas to compression, cooling, cleaning or

other processes to such an extent as may be required

in its transmission from the source thereof to the

Point(s) of Delivery.