Iroquois Gas Transmission System, L.P.

FIRST REVISED VOLUME NO. 1

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Effective Date: 04/01/2003, Docket: RP03-258-000, Status: Effective

Original Sheet No. 60D.01 Original Sheet No. 60D.01 : Effective

4.10 Bump Protection for Firm Primary and secondary firm

services: Transporter shall not schedule an Intra-day Nomination

Change if the result of scheduling such nomination would be to

bump flowing and/or scheduled transportation under any firm

primary and secondary firm service. Protected firm services do

not include Extended Receipts and Extended Deliveries.