The maximum authorised draft will drop to 48.0 feet (14.63 metres) on 26 August and to 47.5 feet (14.48 metres) on 3 September — the fourth and fifth reductions this year, following earlier cuts from 49.5 feet in early July to 49.0 feet on 24 July and 48.5 feet on 15 August. Daily transit numbers are unaffected; the ACP frames the measures as water conservation informed by the severe 2023–24 drought and supported by water-saving basins, simultaneous lockages, interior gates and curtailed hydroelectric generation at Gatun Dam.
The ACP had already announced progressive Neopanamax draft restrictions on 13 July and a Panamax-lock auction suspension on 21 July in response to falling Gatun Lake levels and El Niño.