The Panama Canal Authority has revised elements of its transit booking system and altered requirements under its NetZero programme, an advisory to shipping that was reported on 1 November 2026. The advisory takes immediate effect and, in one of its key measures, restores earlier allocation criteria for certain Neopanamax lock booking periods.
The advisory addresses the reallocation of transit slots that are cancelled or otherwise become available during booking periods 1A and 2 at the Neopanamax locks, the report states. Those allocation criteria have been returned to the arrangements that were in place prior to July 2026, according to the published item.
The changes were issued through an Advisory to Shipping from the Panama Canal Authority and are effective from the date of the notice, the report says. The advisory covers the specific mechanics for assigning available slots during the named booking periods, with the Authority restoring the prior set of rules rather than the interim approach applied since July 2026.
reports also recorded that the Canal has updated aspects of its NetZero programme requirements in the same advisory. The published summary identifies the update to the NetZero programme as a discrete element of the advisory but does not enumerate the detailed technical specifications in the report provided for verification.
The restoration of pre-July 2026 allocation criteria for booking periods 1A and 2 applies specifically at the Neopanamax locks, the report makes clear. The advisory therefore targets the booking and reallocation process within those Neopanamax lock windows rather than a general overhaul of the entire booking framework.
Immediate effect and scope
The advisory was communicated as taking effect immediately and applies to slots cancelled or becoming available during the two named booking periods. The reported change reverses the modification that had been in place since July 2026, reinstating the prior allocation approach for those scenarios.
NetZero programme update
Alongside the booking-system revision, the Canal issued an update to NetZero programme requirements as part of the same advisory, the reports item states. The report does not set out specific new thresholds or operational measures within the NetZero update; it identifies the programme requirement changes as part of the advisory package.
The published account from reports dated 1 November 2026 is the source for the advisory details summarised here. The report is presented as the primary public notice used for verification of the advisory's existence and its immediate effective date.
The advisory’s restoration of earlier allocation criteria at the Neopanamax locks and the contemporaneous update to NetZero programme requirements were reported as linked developments in the Canal’s latest shipping advisory. The published item supplies the principal factual record on both measures and their timing.