Portland Natural Gas Transmission System

Second Revised Volume No. 1

Effective Date: 08/01/2009, Docket: RP09-686-000, Status: Effective

First Revised Sheet No. 323 First Revised Sheet No. 323

Superseding: Original Sheet No. 323

GENERAL TERMS AND CONDITIONS (Continued)

(b) by correcting the error if the percentage of error is

ascertainable by calibration, tests, or mathematical calculation; or in the

absence of both (a) and (b), then;

deliveries during periods under similar conditions when the meter was

registering accurately.

6.8 Preservation of Metering Records. Transporter and Shipper shall

each preserve for a period of at least three (3) Years all test data, charts

and other similar records.

7. NOMINATIONS AND SCHEDULING

7.1 Nominations.

(a) For service requested for any Nomination period under each of

Shipper's Gas Transportation Contracts, Shipper, or Shipper's agent, shall

provide Transporter with the level of information required to define a

Nomination as provided in WGQ Data Set 1.4.1 Version 1.8, as required by the

Commission in 18 C.F.R. Section 284.12(a) in accordance with Order No. 587-T

issued February 24, 2009. Transporter shall provide, upon request, an

indication of which data elements it is using and what it is using them for.

Such Nominations are to be provided to Transporter under the timeline set

forth in Section 7.2 via EDI. All such transmissions for Nomination purposes

shall comply with all format and protocol requirements specified by the

applicable trading partner agreement. Nominations may be sent to Transporter

for each Nomination cycle described in Section 7.2 either in hard copy or

facsimile not later than one hour prior to the applicable Nomination receipt

deadline.

Nominations for Park and Loan Service under Rate Schedule PAL may only

be made by entities that are party to a Park and Loan Service Contract with

Transporter. Such nominations can be made on Transporter's Interactive

Internet Website consistent with Rate Schedule PAL.

All Nominations shall be considered original Nominations and must be

replaced to be changed. When a Nomination for a date range is received, each

day within the range is considered an original Nomination. When a subsequent

Nomination is received for one or more days within that range, the previous

Nomination is superseded by the subsequent Nomination only to the extent of

the days specified. The days of the previous Nomination outside the range of

the subsequent Nomination are unaffected. Nominations have a prospective

effect only.

Transporter shall support a seven-days-a-week, twenty-four-hours-a-day

Nomination process. Personnel may be reached by beeper after normal business

hours.