ADVISORIES ARE AVAILABLE AT http://www.pancanal.com FOR ETAS OR DIRECT COMMUNICATION WITH OUR OFFICES, REFER TO NOTICE N-3-2023 Panama Canal Authority Vice Presidency for Operations Advisory T o S hipping No. A-56-2023 December 19, 2023 TO: All Shipping Agents, Owners, and Operators SUBJECT: Tug and Barge Units will be Allowed to Participate in Auctions for Booking Slots Due to the fact that presently only vessels that have been assigned a booking slot are considered for transit, the Panama Canal Authority (ACP) finds it necessary to modify certain Transit Reservation System rules to include vessels that currently are not allowed to participate in the booking process, such as tug and barge units. Therefore, beginning with the auctions to be held on December 21, 2023, for transit on December 28, 2023, tug and barge units will be allowed to participate in the auctions for booking slots in their respective vessel categories (Neopanamax, supers, or regulars). If a tug and barge unit is awarded the auctioned slot, then the larger of the two will be assigned the slot and will pay the winning bid, while the smaller unit will pay the applicable booking fee based on dimensions. Since tug and barge units must be physically inspected by ACP personnel prior to being approved for transit, they will be allowed to participate in auctions after conditions for transit have been determined and approval for transit has been given by the Canal Port Captain. In addition, the 18-hour In-TransitTime will not apply to tug and barge units that obtain a booking slot, since they will generally be scheduled for a two-day or three-day transit due to speed, transit restrictions, and resource requirements. For inquiries regarding these rules, please contact our Customer Service office at the following email address: customerservice@pancanal.com . ORIGINAL SIGNED Boris Moreno Vásquez Vice President for Operations 3654-A (OP-I) V. 29/03/2023