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

Tenth Revised Sheet No. 29
Superseding
Ninth Revised Sheet No. 29

Currently Effective Rates
Applicable to Rate Schedule OPT
Rate Per Dth


                                             Transportation Cost   Electric Power      Annual      Total
                                Base        Rate Adjustment       Costs Adjustment     Charge    Effective    Daily
                             Tariff Rate  Current   Surcharge   Current   Surcharge   Adjustment    Rate       Rate
                                 1/                                                      2/    

Rate Schedule OPT
  30 Days Interruption7
    Reservation Charge 3/    $      5.140   0.310      0.043      0.052      0.016        -         5.561      0.1828
  60 Days Interruption
    Reservation Charge 3/    $      4.672   0.282      0.039      0.048      0.014        -         5.055      0.1663
  Commodity
    Maximum                  ¢       1.04    0.43       0.13       0.61       0.05      0.19        2.45       2.45
    Minimum                  ¢       1.04    0.43       0.13       0.61       0.05      0.19        2.45       2.45
  Overrun
    30 Days Interruption     ¢      17.94    1.45       0.27       0.78       0.10      0.19       20.73      20.73
    60 Days Interruption     ¢      16.40    1.36       0.26       0.77       0.10      0.19       19.08      19.08





1/  Excludes Account 858 expenses and Electric Power Costs which are recovered through Columbia's Transportation Costs Rate Adjustment (TCRA)
    and Electric Power Costs Adjustment (EPCA), respectively.  For rates by function, see Sheet No. 35.
2/  ACA assessed where applicable pursuant to Section 154.402 of the Commission's Regulations.
3/  Minimum reservation charge is $0.00.

Issued by: James R. Downs, VP Rates & Regulatory Affairs
Issued on: February 26, 2010                                                          Effective on: April 1, 2010