Logistics & shipments
Mexico modifies port boundary of Isla Mujeres — area expanded
Mexico published an official agreement (11 Aug 2026) modifying the Delimitation and Determination of the Port Precinct (Recinto Portuario) of Isla Mujeres, Quintana Roo. The precinct area increases from 68,526.873 m² to 614,707.7567 m². Publication: Diario Oficial de la Federación, 11/08/2026.
What changed
The joint Secretaría de Marina and Secretaría de Medio Ambiente y Recursos Naturales agreement amends the port precinct delimitation for Isla Mujeres.
The text states: "Se modifica la Delimitación y Determinación del Recinto Portuario... que comprendía un área total 68,526.873 m2, para quedar constituido por un área total de 614,707.7567 m2."
The instrument lists detailed polygons, separates "Total de área de agua (ZFM) 562,066.8725" and "Total área de tierra (ZFMT) 52,640.8842," and includes a transitory: "entrará en vigor al día siguiente de su publicación en el Diario Oficial de la Federación."
That makes the legal effective date the day after publication (publication 2026-08-11). The agreement declares affected federal maritime zones will be under SEMAR administration and subject to the Ley de Puertos and environmental law; it preserves existing concessions' terms.
Immediate actions for import/port operators
- Review maps/coordinates in the agreement (polygons and UTM WGS84 Zone 16N) to identify if your berths or approaches fall within the expanded precinct.
- Confirm which assets or concessions you operate are within the new Recinto Portuario boundaries and note that existing concessions "continuarán surtiendo sus efectos" until expiry.
- Notify port agents and carriers of the effective date (day after DOF publication) and verify any SEMAR requirements for operations or environmental compliance in newly affected areas.