TransColorado Gas Transmission Company

Original Volume No. 1

Effective Date: 05/15/2000, Docket: GT00- 25-000, Status: Effective

Second Revised Sheet No. 221 Second Revised Sheet No. 221 : Superseded

Superseding: First Revised Sheet No. 221

GENERAL TERMS AND CONDITIONS

6. CAPACITY RELEASE BY FIRM SHIPPERS (Continued)

Notice of a withdrawal of a Capacity Release Request

must be delivered to TransColorado's DART system or via EDI no later than

the end of the open season for the Capacity Release Request.

(g) A Replacement Shipper or Subreplacement Shipper may

release the capacity under the provisions of this Section 6 (except as

prohibited by Federal Energy Regulatory Commission Regulations).

(h) Any Capacity Release Request not in compliance with this

Section 6.5 and the other provisions of TransColorado's Tariff shall be

null and void and, even if posted, may be removed from TransColorado's

DART system by TransColorado at any time.

6.6 Open Season Exceptions. An open season is not required for:

(a) a Prearranged Release for the maximum reservation charge applicable to

the capacity being released; or (b) a Short-term Prearranged Release. A

Capacity Release Request which is not subject to an open season need only

contain the information required in Sections 6.4(a) and (b). Such Capacity

Release Request must be delivered to TransColorado's DART system (or in

writing for posting on TransColorado's DART system if TransColorado's DART

system is unavailable for receiving Capacity Release Requests)

sufficiently in advance so that the release may become effective under

Section 6.9 before the release transaction is to commence. A Releasing

Shipper may not rollover, extend or in any way continue a Short-term

Prearranged Release with the same Replacement or Subreplacement Shipper

until twenty-eight (28) days after the Short-term Prearranged Release has

ended unless the Releasing Shipper complies with the Capacity Release

Request provisions in Sections 6.3 and 6.4.

6.7 Postings; Open Season.

(a) A Capacity Release Request received by TransColorado via

EDI (which is applicable only for Prearranged Capacity Release Requests)

or through the DART system prior to the starting time of the open season

requested by the Releasing Shipper in its Capacity Release Request in

conformance with this Section 6 shall be posted on TransColorado's DART

system as requested. The posting shall contain the information contained

in the Capacity Release Request, except that all identifying information,

and the minimum price in any minimum price condition requested to be held

confidential by the Releasing Shipper (but not the existence of the

minimum bid condition), shall be kept confidential and shall not be

posted. The posting shall also include the maximum reservation charge

(including all reservation surcharges) applicable to the capacity subject

to the Capacity Release Request, the beginning and ending time for the