Centerpoint Energy Gas Transmission Company

Sixth Revised Volume No. 1

Effective Date: 08/27/2008, Docket: RP08-456-000, Status: Effective

First Revised Sheet No. 152 First Revised Sheet No. 152

Superseding: Original Sheet No. 152

RATE SCHEDULE RSS

REVERSE STORAGE SERVICE

(continued)

2. APPLICABILITY AND CHARACTER OF SERVICE (continued)

2.9 Shipper may release all or a portion of its capacity under an RSS

Service Agreement to the extent permitted by, and subject to the

terms and conditions contained in, this section and Section 19 of

the General Terms and Conditions of this Tariff. Also, the Shipper

may release separately its RSS transportation and storage rights

as described below, provided, however, that such capacity may not

be segmented. A Shipper releasing a portion of its total rights

under an RSS Service Agreement must designate how any existing RSS

Balance, as defined in Section 4 of this Rate Schedule, is to be

allocated among itself and the replacement Shipper(s).

(a) The releasing Shipper may release and assign solely the firm

transportation rights underlying its RSS service and any

such stand-alone firm transportation rights shall be subject

to the same limitations (inter alia, utilization subject to

capacity, and time limitations) applicable to the releasing

Shipper under Rate Schedule RSS except as may be explicitly

provided for herein. The replacement Shipper under any such

stand-alone release of transportation rights must comply

with nomination and scheduling requirements and Fuel Use and

LUFG retentions as would apply to service under Rate

Schedule FT. A releasing Shipper may not separately release

firm transportation rights which would impair its

obligations to replace during the Reverse Injection Period

its RSS Balance at the time of the release.

(b) The releasing Shipper may release and assign solely the

storage component (i.e., part or all of its withdrawal

rights at Storage Points of Withdrawal during the Reverse

Withdrawal Period along with the obligation to tender at

Storage Points of Injection during the Reverse Injection

Period quantities to replace those withdrawn) underlying its

RSS service. The replacement Shipper under any such stand-

alone release of storage rights must nominate and have

scheduled any desired withdrawals from or injection into its

storage account and must provide for Storage Fuel and

Storage LUFG retentions in the same manner as required under

Rate Schedule FSS and must also separately arrange for

transportation of such Gas from Storage Points of Withdrawal

or to Storage Points of Injection, as applicable.