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

The NYISO is reserving hours beginning 00:00 - 02:00, 05:00, 13:00, 15:00,
and 23:00 in the May 17, 2001 Real-Time Market as well as the following
hours per ECA20001006B to verify prices:

PJM: 00:00 - 03:00, 07:00
OH:  00:00, 03:00, 07:00
HQ:  00:00, 03:00, 07:00
NE:  00:00, 03:00, 07:00

Prices in the May 18, 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 on our website:
http://mis.nyiso.com/public/htm/OperMessages/CurrentOperMessages.htm#mm