SP 3	Time Lines
(a)	Consistent with Section 2.2.12.1 of the ISO Tariff, the ISO may implement any temporary variation or waiver of timing requirements contained in this SP (including the omission of any step) if any of the following criteria are met:
(i)	the ISO receives Schedules that require delay in performing Day-Ahead Market or Hour-Ahead Market evaluations, such as in the case of the ISO receiving Inter-Scheduling Coordinator Trades that do not balance;
(ii)	the ISO requires additional time to fulfill its responsibilities pursuant to Section 2.2.2 of the ISO Tariff;
(iii)	problems with data or the processing of data cause a delay in receiving or issuing Schedules or publishing information on the WEnet;
(iv)	problems with telecommunications or computing infrastructure cause a delay in receiving or issuing Schedules or publishing information on the WEnet; or
(v)	such waiver or variation of timing requirements is reasonably necessary to preserve System Reliability, prevent an imminent or threatened System Emergency or to retain Operational Control over the ISO Controlled Grid during an actual System Emergency.

(b)	If the ISO temporarily implements a waiver or variation of such timing requirements (including the omission of any step) consistent with Section 2.2.12.1 of the ISO Tariff and SP 3(a), the ISO will publish the following information on WEnet as soon as practicable:

(i)	the exact timing requirements affected;
(ii)	details of any substituted timing requirements;
(iii)	an estimate of the period for which this waiver or variation will apply; and
(iv)	reasons for the temporary waiver or variation.

(c)	If, despite the variation of any time requirement or the omission of any step, the ISO either fails to receive sufficient Schedules to operate the Day-Ahead Market or is unable to perform Congestion Management in the Day-Ahead Market, the ISO may abort the Day-Ahead Market and require all Schedules to be submitted, and Congestion Management to be performed, in the Hour-Ahead Market.
(d)	If, despite the variation of any time requirement or omission of any step, the ISO either fails to receive sufficient Schedules to operate the Hour-Ahead Market or is unable to perform Congestion Management in the Hour-Ahead Market, the ISO may abort the Hour-Ahead Market and function in real time.
(e)	The incorporation of the scheduling of the use of rights under Existing Contracts into the ISO’s Day-Ahead, Hour-Ahead and real time processes is additionally described in SP 7 and in the SBP.
SP 3.1	Balanced Schedules
SP 3.1.1	Types of Balanced Schedules
A Schedule shall be treated as a Balanced Schedule when the SC’s aggregate Generation and external imports (adjusted for Transmission Losses) and Inter-Scheduling Coordinator Trades (whether purchases or sales), equal the SC’s aggregate Demand forecast, including external exports, with respect to all entities for which the SC schedules.  On an interim basis, the ISO may assist SCs in matching Inter-Scheduling Coordinator Trades.