Discovery Gas Transmission LLC

Original Volume No. 1

Effective Date: 01/01/2008, Docket: RP08- 70-001, Status: Effective

Second Revised Sheet No. 21 Second Revised Sheet No. 21 : Effective

Superseding: First Revised Sheet No. 21

FOOTNOTES

1/ Section 154.107(f) of the Commission's Regulations requires a total

rate. For this purpose only, a Daily Reservation Charge which equals

the Monthly Reservation Charge divided by 30.4167 (365 days/12 months)

is reflected.

For capacity release transactions at maximum rate, the Monthly

Reservation Charge is divided by the number of Days in the applicable

Month. For less than maximum rate transactions only, converting Daily

rate to Monthly rate is accomplished by multiplying the Daily rate times

number of Days in rate period, dividing the result by number of Months

in rate period and taking the remainder out to 5 decimal places and

rounding up or down to the fourth decimal place. Converting a Monthly

rate to a Daily rate is accomplished by multiplying the Monthly rate by

the number of Months in rate period; dividing the result by number of

Days in rate period and taking the remainder out to 5 decimal places and

rounding up or down to the fourth decimal place.

2/ For the period during which this ACA Surcharge is effective, it is

Transporter's intent not to seek recovery of any annual charges assessed

pursuant to Part 382 of the Commission's Regulations and Commission

Order No. 472, except as permitted under this ACA Surcharge. This ACA

Surcharge is in addition to any amounts otherwise payable to Transporter

under its Rate Schedules.

3/ Commencing on April 1, 2008, the MO Surcharge shall be assessed and

paid through a volumetric surcharge applicable to any Mainline

transportation service provided to a Shipper charged a discount or

negotiated rate pursuant to this FERC Gas Tariff under a Service

Agreement executed on or before December 31, 2007, but not to any

Shipper that receives transportation service through both the Mainline

Facilities and the Expansion Facilities under a Service Agreement

pursuant to Rate Schedule FT-2 executed on or before December 31, 2005.

In no event shall the sum of a discount rate and the MO Surcharge

exceed the otherwise applicable maximum tariff rate. The MO Surcharge

shall expire on April 1, 2013.