Environment ❯ Air Quality ❯ Pollution Control

Vehicle Emissions

Regulatory Measures Regulatory Programs End-of-Life Vehicles Government Policies Public Health Hoy No Circula Impact Electric Vehicles Low Emission Zones Impact of Vehicles on Air Quality Hoy No Circula Program

EPA Moves to Delay and Rewrite Tier 4 Vehicle Pollution Rules

The agency cites slow electric vehicle sales as the reason.

Maharashtra Approves Motor Vehicle Tax Overhaul to Tackle Pollution and Fund Transport Upgrades

Mexico City Keeps Regular ‘Hoy No Circula’ as No Contingency Is Declared

Gordon-Darby Seeks Contempt Sanctions Over New Hampshire’s Halted Vehicle Inspections

Madrid Plans Conditional Access for Stickerless Local Vehicles Based on Air-Quality Limits

Mexico City Applies Regular Tuesday Hoy No Circula as Air Quality Deemed Acceptable

Mexico City Keeps Regular Friday Hoy No Circula as Air Quality Worsens

No Contingency Declared as Mexico City–Edomex Keep Regular Hoy No Circula Through Feb. 25

Delhi Orders End-of-Life Vehicles Seized and Scrapped if Parked or Plying

Hoy No Circula Suspended This Sunday in CDMX, Edomex and Toluca Metro Areas

February Vehicle Verification Deadlines Take Effect in CDMX and Edomex

Hoy No Circula: Monday, Feb. 2 Rules Hold Steady in Mexico City and Edomex

New Hampshire Extends Inspection Deadlines After Federal Order Keeps Program in Place

Delhi Orders Video-Verified PUC Tests, Plans Sensor-Based 'PUC 2.0' Overhaul

Saturday Hoy No Circula Enforced Across Mexico City, Toluca and Tianguistenco as Air Quality Turns Poor

Hoy No Circula: Saturday, Jan. 17 Rules for CDMX and Edomex

Regular 'Hoy No Circula' in Mexico City and Edomex on Wednesday Restricts Red Sticker Cars Ending 3 and 4 From 5 a.m. to 10 p.m.

CDMX and Edomex Publish First-Half 2026 Vehicle Verification Calendars as Edomex Grants Short Extension for 9–0 Plates

Delhi Drafts EV Policy 2.0 With Proposed Buyer Subsidies and Scrappage Incentives

Hoy No Circula on Saturday, Dec. 20: Odd-Number Hologram 1, All Hologram 2 and Foreign-Plated Vehicles Restricted in Mexico City and Edomex