Columbia Gas Transmission, LLC
FERC Gas Tariff
Third Revised Volume No. 1

First Revised Sheet No. 1
Superseding
Original Sheet No. 1

                                              TABLE OF CONTENTS


Volume No. 1                                                                               Sheet No.

    Preliminary Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        15

    Map of Market Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        16

    Description of Market Areas  . . .  . . . . . . . . . . . . . . . . . . . . . . .        17

    Currently Effective Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . .        25

    Rate Schedules

       Firm Transportation Service (FTS). . . . . . . . . . . . . . . . . . . . . . .       100

       No Notice Transportation Service (NTS) . . . . . . . . . . . . . . . . . . . .       102

       Storage Service Transportation (SST) . . . . . . . . . . . . . . . . . . . . .       106

       General Transportation Service (GTS) . . . . . . . . . . . . . . . . . . . . .       110

       Off-Peak Firm Transportation Service (OPT) . . . . . . . . . . . . . . . . . .       115

       Interruptible Transportation Service (ITS) . . . . . . . . . . . . . . . . . .       119

       Firm Storage Service (FSS) . . . . . . . . . . . . . . . . . . . . . . . . . .       123

       Interruptible Storage Service (ISS). . . . . . . . . . . . . . . . . . . . . .       130

       Storage In Transit Service (SIT) . . . . . . . . . . . . . . . . . . . . . . .       136

       Aggregation Service (AS) . . . . . . . . . . . . . . . . . . . . . . . . . . .       139

       Interruptible Paper Pools (IPP). . . . . . . . . . . . . . . . . . . . . . . .       144

       Merchant Sales Service (MS)  . . . . . . . . . . . . . . . . . . . . . . . . .       147

       LNG Storage Service (LSS). . . . . . . . . . . . . . . . . . . . . . . . . . .       149

       Parking and Lending Service (PAL)  . . . . . . . . . . . . . . . . . . . . . .       150

       Firm Balancing Service (FBS) . . . . . . . . . . . . . . . . . . . . . . . . .       153

       Third Party Storage Transportation (TPS) . . . . . . . . . . . . . . . . . . .       158

       Summer Hourly No Notice Transportation Service (NTS-S) . . . . . . . . . . . .       162

       Firm Storage with Market-Based Rates (FSS-M). . . . . . . . . . . . . . . . .        166

       Interruptible Storage Service with Market-Based Rates (ISS-M) . . . . . . . .        172


    General Terms and Conditions

       General Terms and Conditions (Table of Contents) . . . . . . . . . . . . . . .       260

Issued by: Claire A. Burum, SVP Regulatory Affairs
Issued on: March 25, 2009                     Effective on: April 22, 2009
Filed to comply with order of the Federal Energy Regulatory Commission, Docket 
No. CP08-431-000, issued March 19, 2009, 26 FERC ¶ 61,237