
The Low Emission Zones They have become one of the most debated urban issues in recent times in Spain. These types of areas, designed to limit access to the most polluting vehicles, have been implemented in large and medium-sized cities as part of efforts to improve air quality and comply with national and European legislation on emissions reduction. Although the intention is clear, their practical application is generating many doubts and complaints, both from citizens and administrations.
Following new laws and decrees, municipalities with more than 50.000 inhabitants They are required to establish Low Emission Zones, but each city is adjusting the regulations to its specific situation. Thus, the development and implementation of these zones varies greatly depending on the city, both in terms of the extent and severity of the restrictions, the control systems, and the exceptions included.
What is a Low Emission Zone and why are they implemented?
ZBEs are urban areas where the circulation of older and more polluting vehicles is restricted., with the main objective of reducing pollution levels and improving public health. The legal basis is in the Law 7/2021 on Climate Change and its development depends on each city council, following common guidelines.
In these areas, Only vehicles with a DGT environmental badge (B, C, ECO and 0) can circulate freely., although exceptions are provided for cases such as residents, people with reduced mobility, essential services and specific justified situations.

Cities and characteristics of their Low Emission Zones
In cities like Girona, Granada, Holy Coloma of Gramenet o ZamoraIn addition to the pioneering ones in Madrid and Barcelona, the LEZ is already a reality or is in its final stages of development. Each has defined its perimeter and access conditions according to its urban morphology and the needs of the population.
For instance, Girona The city is finalizing the activation of its LEZ (Least Effective Zone) for September. Entry will be controlled by vehicle registration and cameras installed at 13 strategic points, with exceptions for medical situations, emergencies, or low-income individuals. Restrictions will apply on weekdays, and unmarked vehicles will have an annual entry limit.
En GranadaThe LEZ occupies almost the entire municipal area and is currently in the information phase until the fines begin to be applied, following a moratorium period. The cameras will read license plates at 31 locations, and special permits are available for residents, seniors, professionals, vehicles with work commitments or emergencies, and more.

Exceptions and control systems
The exceptions They are key in all municipal regulations. The most protected groups are usually residents, people with reduced mobility, professionals working in the area, public service vehicles, and cases justified for social, medical, or economic reasons. Many cities have established temporary permits and a limited number of annual accesses for certain profiles.
Access control and the correct application of regulations rest on a network of license plate recognition cameras This allows for the automation of surveillance. Girona will have 19 devices at 13 points, Granada will install 31 cameras, and Santa Coloma de Gramenet will monitor its LEZ with 45 cameras distributed across 24 entry points. Additionally, the vertical and horizontal signage is designed to clearly alert drivers when entering these areas.
Most frequent restrictions, schedules and exceptions
The restricciones They are usually applied on weekdays, with schedules that usually range from early morning (7:00 or 8:00) until the afternoon or evening (20:00 or even 22:00 pm in cases like Albacete). Cars without an environmental badge are the most affected, although many cities include a long list of exceptions: residents, garage owners, people over 67 years of age, emergency vehicles, basic services, loading and unloading, school transport, taxis, VTCs, and special cases such as justifiable medical or work-related travel.
The implementation of these zones has sparked intense social debate. Court rulings have overturned ordinances due to legal flaws or lack of technical justification, as occurred in Segovia, Badajoz, Gijón, Santa Cruz de Tenerife, and even Madrid. The lack of economic and social impact studies, along with the perception that they penalize low-income families, has prompted criticism and the need to rethink some projects.
Citizen associations, self-employed groups, and city councils are calling for greater flexibility and assistance for those unable to renew their vehicles, as well as for improved public transportation. The international debate, with examples such as France, where the decision was made to eliminate LEZs due to their impact on lower-income households, also influences national policies.
Meanwhile, local governments continue to adjust their projects based on European and national regulations, court rulings, and social demands. Cities such as Ourense, Zamora, and Albacete are moving forward with their plans, adapting timelines and restrictions to their specific circumstances. The implementation process for LEZs in Spain is dynamic, with progress, adjustments, and constant dialogue between the legislature, courts, city councils, and citizens.