Portland Natural Gas Transmission System

Second Revised Volume No. 1

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Effective Date: 09/01/2006, Docket: RP06-449-000, Status: Effective

Original Sheet No. 1 Original Sheet No. 1 : Effective

TABLE OF CONTENTS

Description Sheet No.

Preliminary Statement 3

System Map 4

Rates 100

Rate Schedules

FT - Firm Transportation Service 200

IT - Interruptible Service 205

PAL - Park and Loan Service 208

FT-FLEX - Limited Firm Transportation Service 214

HRS - Hourly Reserve Service 219

General Terms and Conditions - Table of Contents 300

Introductory Statement 301

Definitions 301

Requests for Service/Credit Evaluation 310

General Service Conditions 317

Quality of Gas 318

Measurement of Gas and Measurement Equipment 320

Nominations and Scheduling 323

Balancing and Penalties 332

Receipt Points and Delivery Points 340

Service Interruptions and Priorities 341

Capacity Release 343

Segmented Capacity 362

Pregranted Abandonment and Right of First Refusal 363

Interactive Internet Website 365

Lateral Facilities Policy 368

Billings and Payments 369

Cost Reimbursements 372

ACA Charge 374

Warranty of Title and Possession of Gas 375

Indemnity 377

Liability and Remedies 378

Supervening Laws and Changes by the Transporter 381

Marketing Affiliate Rule 382

Miscellaneous 383

Compliance with WGQ Standards 385