IMqasqas@nyiso.com writes to the NYISO_TECH_EXCHANGE Discussion List:

The NYISO is reserving the following hours in the September 22, 2001
Real-Time Market per ECA 20010908B to verify prices:

HQ:   02:00?04:00 and 18:00-20:00.
NE:   18:00-20:00.
OH:   18:00-20:00.
PJM:  00:00-05:00 and 18:00-20:00.
All other prices in the September 22, 2001 Real-Time Market are correct.

Prices in the September 23, 2001 Day-Ahead Market are correct.

This e-mail information is a copy of the official posting, which can be
found at the following address of our website:
http://mis.nyiso.com/public/htm/OperMessages/CurrentOperMessages.htm#mm

Ibrahim Mqasqas,
Market Monitoring and Performance,
NYISO