Iroquois Gas Transmission System, L.P.

FIRST REVISED VOLUME NO. 1

Effective Date: 05/01/1996, Docket: RP96-187-000, Status: Effective

Second Revised Sheet No. 12 Second Revised Sheet No. 12 : Effective

Superseding: First Revised Sheet No. 12

RATE SCHEDULE RTS (Continued)

4.2 Transportation Rates

(a) Transportation Commodity Rates

(1) Maximum and Minimum Transportation

Commodity Rates. The Maximum and Minimum Transportation

Commodity Rates for each Dth of Scheduled Equivalent Quantity

at each Delivery Point shall be the Maximum and Minimum

Commodity Rates reflected for Rate Schedule RTS from time to

time on the currently effective Sheet No. 4 of this FERC Gas

Tariff.

(2) Discounted Transportation Commodity

Rate. The Discounted Transportation Commodity Rate shall be

the dollar amount per Dth of Scheduled Equivalent Quantity at

each Delivery Point as specified by Transporter in a notice

to Shipper, which amount shall be less than the Maximum

Transportation Commodity Rate but equal to or greater than

the Minimum Transportation Commodity Rate.

(3) Intra-Zone Transportation Commodity

Rate. Separately stated Transportation Commodity Rates shall

apply to the provision of firm reserved transportation

service within Transporter's Zone 1, as defined in Section

2.30 of the General Terms and Conditions, and within

Transporter's Zone 2, as defined in Section 2.31 of the

General Terms and Conditions. The Zone 1 Transportation

Commodity Rate shall apply to each Dth of Scheduled

Equivalent Quantity at any Delivery Point located in

Transporter's Zone 1 which corresponds to a Dth of Scheduled

Input Quantity at any Receipt Point located in Transporter's

Zone 1. The Zone 2 Transportation Commodity Rate shall apply

to each Dth of Scheduled Equivalent Quantity at any Delivery

Point located in Transporter's Zone 2 which corresponds to a

Dth of Scheduled Input Quantity at any Receipt Point located

in Transporter's Zone 2.