Gas Transmission Northwest Corp.

Third Revised Volume No. 1-A

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Effective Date: 01/01/2007, Docket: RP06-407-000, Status: Effective

Sixth Revised Sheet No. 100 Sixth Revised Sheet No. 100 : Effective

Superseding: Fifth Revised Sheet No. 100

TRANSPORTATION GENERAL TERMS AND CONDITIONS

TABLE OF CONTENTS

Paragraph No. Provision Sheet No.

1 Definitions 101

2 Equality of Transportation Service 108

3 Quality of Gas 110

4 Measuring Equipment 112

5 Measurements 114

6 Inspection of Equipment and Records 116

7 Billing 117

8 Payment 118

9 Notice of Changes in Operating Conditions 119

10 Force Majeure 120

11 Warranty of Eligibility for Transportation 121

12 Possession of Gas and Responsibility 121

13 Indemnification 121

14 Arbitration 122

15 Governmental Regulations 122

16 Miscellaneous Provision 123

17 Transportation Service Agreement 123

18 Operating Provisions 125

19 Priority of Service, Scheduling and Nominations 142

20 Curtailment 159

21 Balancing 160

22 Annual Charge Adjustment (ACA) Provision 170

23 Informational Postings 170

24 Complaint Procedures 171

25 Information Concerning Availability and Pricing

of Transportation Service and Capacity Available for

Transportation 172

26 Market Centers 173

27 Planned GTN Capacity Curtailments and Interruptions 174

28 Capacity Release 175

29 Flexible Receipt and Delivery Points 200

30 Operational Flow Order Procedures 204

31 Negotiated Rates 208

32 Reservation of Capacity for Expansion Projects 210

33 Right of First Refusal Upon Termination of

Firm Shipper's Service Agreement 211

34 Electronic Communications 216

35 Reserved For Future Use 221

35A Crediting of Interruptible Transportation Revenues for

Extensions 222

36 Discount Policy 225

37 Adjustment Mechanism for Fuel, Line Loss and Other

Unaccounted For Gas Percentages 227

38 Incremental Fuel Reallocation Mechanism 229

39 Sales of Excess Gas 230

40 Gas Industry Standards 231