| Insert Time | Message |
| 01-Oct-2021 15:18:07 | ADDENDUM: NYISO is reserving HB 04, 05 in the September 30, 2021 Real-Time Market encompassing Energy, Regulation, and Operating Reserves. |
| 01-Oct-2021 15:26:50 | Prices in the September 30, 2021 Real-Time Market for the period hours beginning 12 through 23 encompassing Energy, Regulation, and Operating Reserves are correct.
Prices in the October 02, 2021 Day-Ahead Market are correct. |
| 01-Oct-2021 15:58:07 | Prices in the October 01, 2021 Real-Time Market for the period hours beginning 0 through 11 encompassing Energy, Regulation, and Operating Reserves are correct. |