Effective Tuesday, March 24th, California Gas Transmission will deploy two modifications to the INSIDEtracc system that we believe customers will be very happy about.

The first is a corretion to a Buyer / Seller mismatch problem. Currently, Customer A enters a nomination for the Timely cycle. Customer B enters a matching nomination for the Evening cycle. INSIDEtracc is not matching the nominations together until the Intraday 1 cycle. The correction in place starting Tuesday will match these two nominations in the Evening Cycle.

The second modification corrects what has been known as the "Sched Vol 02" problem. Customer A and Customer B have a matching nomination for the Timely cycle. Customer B decreasees their nomination between the Confirm and Schedule processes of the Timely cycle. Currently, the decrease takes effect immediately and shows a "SchVol-02" cut code. At this point it is unclear to parties if the resulting cuts they are seeing are due to an upstream interconnect issue or a matching party nomination.

The modification effective Tuesday will result in the following INSIDEtracc actions:

• If a customer decreases a nomination between the Confirm and Schedule processes of the current cycle (e.g. Timely), the change will be held until the next cycle (e.g. Evening).
• The SchVol-02 cut code will go back to the original message of "Upstream Interconnect Cut" which will only be applied during the Schedule process.
• If a customer is decreasing a nomination between the Confirm and Schedule processes, the Elapsed Prorata Scheduled Quantity (EPSQ) floor will be projected (i.e. estimated).
• A decrease after a cycle has been scheduled and prior to the next cycle deadline will continue to reflect the actual EPSQ.
• If a customer attempts to change a nomination between the cycle deadline and the completion of the Confirm process, they will receive a message to wait until the Confirm process has been completed.

If you have questions, please contact the CGT Gas Scheduling Team or a CGT Account Services Representative at 800.343.4743.