Transcontinental Gas Pipe Line Company, LLC
Fourth Revised Volume No. 1
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Effective Date: 12/31/2008, Docket: RP09-158-000, Status: Effective
Original Sheet No. 472 Original Sheet No. 472
GENERAL TERMS AND CONDITIONS
51. OPERATIONAL CONTROLS
Seller shall implement Operational Controls through notices to Buyers, Receipt Point
Operators, and Receipt Point OBA Parties in order to maintain the operational flexibility of
Seller's system. Circumstances under which Seller may determine that an Operational Control
must be issued include, but are not limited to (1) ensuring current and future storage
capabilities and maintenance of line pack and (2) maintaining operational pressures and
adequate gas supplies required to provide an efficient and reliable service. Seller shall
determine in its sole judgment the action that is required to avoid an operating condition
which could jeopardize the operational flexibility of the system. At least 48 hours prior
to issuing notice of an Operational Control, Seller shall post a warning on 1Line
identifying the existing operating conditions which are jeopardizing the operational
flexibility of the system and which could cause Seller to issue notice of an Operational
Control, pursuant to Sections 51.1 and 51.2 below.
Seller may, on a non-discriminatory basis, direct Buyers, Receipt Point Operators, or
Receipt Point OBA Parties to take action through one or both of the following:
(a) Variance Notices pursuant to Section 51.1.
(b) Imbalance Makeup Notices (IMN) pursuant to Section 51.2.
Variance Notices and Imbalance Makeup Notices may be issued in addition to other actions
taken by Seller, including issuance of an OFO. Whenever a condition in an OFO, as set forth
in Section 52 of the General Terms and Conditions, conflicts with a condition in a Variance
Notice or IMN, the condition stated in the OFO shall override the Variance Notice or IMN.
In the event an OFO overrides the Variance Notice or IMN, the applicable penalty during the
period the OFO is in effect, shall be the OFO penalty as set forth in Section 52.5 of the
General Terms and Conditions.
Seller shall provide relevant information specific to the individual situation regarding the
issuance and lifting of each particular Variance Notice and IMN.
Contact person(s) must be available to receive communication from Seller on operating
matters at any time, twenty-four (24) hours a day, seven days a week on a year around basis.
Buyers, Receipt Point Operators, and Receipt Point OBA Parties shall be solely responsible
for any consequences arising if communication is not possible due to Buyers', Receipt Point
Operators' or Receipt Point OBA Parties' failure to make contact person(s) available.
51.1 Variance Notices. Variance Notices are used to ensure, to the extent possible, that
all quantities received at a Receipt Point shall be in accordance with the scheduled
and confirmed quantity at such point within the Variance Notice Tolerance Percentage
posted by Seller pursuant to Section 51.1(d). Seller shall state whether the notice
applies system wide, to an affected area, or to individual points, the Tolerance
Percentage and the duration of the notice.
(a) Seller shall state in its Variance Notice the notice type, which shall be
(i) Pipeline Oversupply Notice - Upon issuance of a Pipeline Oversupply
Notice, to the extent actual receipt quantities exceed scheduled receipt
quantities by more than the Variance Notice Tolerance Percentage defined
in Section 51.1(d) below, following the applicable notice period defined
in Section 51.1(c) below, the gas quantities received in excess of the
Tolerance Percentage shall be subject to the Variance Notice Penalty set
forth in Section 51.1(e) below; or