Overview
- Phase 1 remains in force this morning for the Valle de Toluca and Santiago Tianguistenco metropolitan zones after Dec. 25 peaks of 84 and 82 µg/m³ recorded at Almoloya de Juárez and Xonacatlán.
- Vehicle curbs run Friday, Dec. 26 from 05:00 to 22:00 for hologram 2; hologram 1 plates ending 1, 3, 4, 5, 7, 9; and hologram 0/00 with blue sticker plates 9 and 0.
- Additional rules include a 06:00–10:00 window for most cargo transport, a 50% cut for LP gas deliveries without dry-disconnect valves, and taxi operation allowed 05:00–10:00.
- Health guidance urges sensitive groups to stay indoors, postpone outdoor events and exercise, avoid open burning, and use wet sweeping to limit dust.
- Mexico City reported poor air in several boroughs, but no metro-wide contingency was declared and routine Hoy No Circula applies as usual.