Iroquois Gas Transmission System, L.P.

FIRST REVISED VOLUME NO. 1

Effective Date: 08/01/1999, Docket: RP99-411-000, Status: Effective

Third Revised Sheet No. 60D Third Revised Sheet No. 60D : Effective

Superseding: 2nd. Sub. First Revised Sheet No. 60D

(v) For purposes of Section 4.8 (ii) (iii) and (iv),

"provide" shall mean, for transmittals pursuant to standards

1.4.x, receipt at the designated site, and for purposes of other

forms of transmittal, it shall mean send or post.

With the exception of otherwise stated GISB nominations

deadlines, when a Transporter receives a Nomination document from

a Shipper by the conclusion of a given quarter hour period, the

Transporter will send to the Shipper's designated site a

corresponding Quick Response document by the conclusion of the

subsequent quarter hour period.

The quarter hour periods will be defined to begin on the hour

and at 15, 30, and 45 minutes past the hour. A given quarter

hour will contain all transactions whose receipt time is less

than the beginning of the subsequent quarter hour.

Transporter's nightly processing and routine maintenance occur-

ring outside of normal business hours are apt to interrupt the

normal schedule for nominations/quick response turnaround stated

above. Such delays should be kept to a minimum. The normal

schedule should be resumed at the earliest opportunity and no

later than the start of normal working hours the following day,

seven days per week.

4.9 Bumping. Any Shipper who is bumped pursuant to

Section 4.8 shall be directly notified by Transporter at their

primary telephone or facsimile number, as designated by Shipper,

as well as through Internet e-mail. Upon request of Shipper,

Transporter shall endeavor, but shall not be obligated, to notify

Shipper at alternate numbers. Bumping that affects transactions

on multiple transporters should occur at grid-wide

synchronization times only. The daily grid-wide synchronization

times for scheduled flow are 9:00 a.m., 5:00 p.m., and 9:00 p.m.