Transcontinental Gas Pipe Line Company, LLC

Fourth Revised Volume No. 1

Effective Date: 12/31/2008, Docket: RP09-158-000, Status: Effective

Original Sheet No. 357 Original Sheet No. 357

GENERAL TERMS AND CONDITIONS

(Continued)

18. DETERMINATION OF DELIVERIES AND RECEIPTS, ALLOWABLE DAILY DISPATCHING VARIATIONS, OVERRUN

CHARGES AND PENALTIES (Continued)

18.1 (a) (ii) The PDAs provided by delivery point operators shall include a numeric rank

and quantity (limit values) for each gas day by using one of the levels

specified below, provided, however, PDAs for Rate Schedules GSS, LSS, S-2,

SS-2 and LGA must be provided at the transaction level:

(A) Buyer ID/Downstream ID - an aggregation of scheduled quantities and

effective PDA and limit value(s) with the same Buyer ID and

downstream ID.

(B) Contract - an aggregation of scheduled quantities and effective PDA

and limit value(s) with the same contract.

effective PDA and limit value(s) with the same package ID,

downstream ID, downstream contract, and Buyer's contract.

(D) Transaction - scheduled quantities and effective PDA and limit

value(s) without any aggregation.

(iii) The limit value will be used, in part or in total, in conjunction with the

scheduled quantity to determine the total quantity to be allocated. The

delivery point operator shall provide Seller with unique limit values for

high burn (measured quantities are in excess of scheduled quantities) or

low burn (measured quantities are less than scheduled quantities)

situations. PDAs provided by the delivery point operator shall be

consistent with the rate schedule(s) limitations and the provisions of

Section 28 of the General Terms and Conditions. To the extent that the

high burn PDAs do not fully use all available firm services, Seller shall

consider any measured quantities in excess of the sum of the scheduled

quantities and PDAs as dispatching variations pursuant to Section 18.2 and

unauthorized daily overruns, if applicable, pursuant to Section 18.3 under

this section. If the PDA rank and limit value are provided in accordance

with 18.1(a)(ii)(D) above, and sufficient PDAs are not provided by the

delivery point operator in a low burn situation, Seller reserves the right

to reduce the allocated quantities to all available services of the

delivery point operator on a pro-rata basis until the total allocated

quantity is equal to the total measured quantity. If necessary, Seller

shall reduce all remaining deliveries at the point(s) of delivery where

Seller tenders gas to the delivery point operator on a pro-rata basis

until the allocated quantity is equal to the measured quantity. If the

PDA rank and limit value(s) are provided in accordance with

18.1(a)(ii)(A), (B) or (C) above, and sufficient PDAs are not provided by

the delivery point operator in a low burn situation, Seller will reduce

the aggregated allocated quantities on a pro-rata basis first and then

consistent with 18.1(a)(iv)(C) below.