Transcolorado Gas Transmission Company LLC

Second Revised Volume No. 1

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Effective Date: 12/28/2007, Docket: RP08-167-000, Status: Effective

Original Sheet No. 294 Original Sheet No. 294 : Effective




20. SYSTEM OPERATION - (Continued)


E. Notice of a Critical Time will be posted on TransColorado's

Interactive Website, and will be the first information item shown on the

informational postings portion of the website. TransColorado will endeavor to

post the notice its Interactive Website before 4:00 p.m. CCT or otherwise will

endeavor to notify Shippers via the Interactive Website by 4:00 p.m. CCT that

they should check the Interactive Website again at a specified later time to

see whether a Critical Time will be in effect for the next day. TransColorado

must attempt to give actual notice of a Critical Time via e-mail, fax or

telephone (provided a Shipper has given the numbers to TransColorado as

required in this Section) at least four (4) hours prior to the start of the

day before a Critical Time will be effective as to a Shipper. Such notice

shall specify the anticipated duration of the Critical Time and whether other

charges will apply to over-receipts and under-deliveries vis-à-vis confirmed

nominations or to under-receipts and over-deliveries vis-à-vis confirmed

nominations. If reasonably possible, a Critical Time will be effective at the

start of a day and will continue until the end of the day and through the end

of successive days until TransColorado notifies Shippers via TransColorado's

Interactive Website that there is no longer a Critical Time.


F. In the event that, in TransColorado's judgment, the Advisory

Actions under Section 20.4 are not sufficient to alleviate conditions, inter

alia, which threaten or could threaten the safe operations or system integrity

of TransColorado's system or to maintain operations required to provide

efficient and reliable firm service, TransColorado is authorized to issue



Notwithstanding the foregoing, TransColorado shall take

reasonable actions to minimize the issuance and the adverse impact of OFOs,

or of any other measure taken under this Section in response to adverse

operational events on TransColorado's system. TransColorado will issue OFOs

only if necessary, in its reasonable judgment, to maintain the pressure of

its system within the range of normal operating parameters or, to respond to

or prevent facility outages or other conditions which could have a

detrimental impact on system reliability or service integrity on its system.

OFOs shall be lifted as soon as practicable when such conditions no longer