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

The NYISO is reserving the following hours in the September 21, 2001
Real-Time Market per ECA 20010908B to verify prices:

HQ:   03:00 and 04:00.
NE:   None.
OH:   None.
PJM:  None.
All other prices in the September 21, 2001 Real-Time Market are correct.

Prices in the September 22, 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