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The French ZPR & ZPA environmental zones

by Simon Nicklin
The French ZPR & ZPA environmental zones

The French ZCR and ZPA environmental zones

In France, two different types of environmental zones have been introduced in order to reduce the pollutants caused by the road traffic. In these zones traffic can be permanently or temporarily restricted. 
The zones where the traffic is permanently restricted, are called “traffic restriction zones” (“zones à circulation restreinte - ZCR“). This type of zone is always active, even though traffic restrictions are tightened over the years.
The “air protection zones” are significantly larger comprising geographic areas, which can affect several municipalities or metropolitan regions. These zones are only activated during an air pollution peak and are then usually valid for several days only.
However, certain ZPA zones apply to the territory of an entire department. In these so-called ZPAd ("zone de protection de l' air départementale"), particular areas with circulation restrictions are defined in case of an air pollution peak only. These zones of traffic restrictions are then temporarily activated.

The ZCR environmental zones

The "traffic restriction zones" are permanent environmental zones that are always valid. They are most often introduced in city centres to exclude old and polluting vehicles from traffic. In French, these zones are called “zones à circulation restreinte” and abbreviated ZCR.
Cities and municipalities are responsible for the introduction of ZCRs as it is regulated by the national Décret ZCR 2016-847 of June 28, 2016. After a 6-month period of hearings, which allows affected citizens to voice their concerns and take part in the decision-making process, the zone becomes binding. 
A Crit’Air badge, allocated in 6 categories, is required in order to drive in the ZCR environmental zones defined by cities or municipalities in France.

The respective city or municipality determines the Crit’Air categories allowed to enter the zone at certain days and times. For that purpose, a sign will be installed under the usual ZCR label. This additional sign will indicate the days and hours on which driving with a certain Crit’Air vignette is allowed.
Other benefits may be added according to the Crit’Air badge, such as parking privileges for the lowest emission classes. However, these advantages will be decided individually by each city or municipality. 
In the mid and long term, more and more badge categories are being excluded from entering the environmental zones, so that in a few years' time only categories E and 1 will be able to enter. 
In a ZCR zone, vignette colours are permanently excluded and do not depend on the prevailing weather conditions. However, the ZCR and ZPA zones may overlap. If driving bans are then imposed within the ZPA zone due to weather conditions, these will also apply to the ZCR zone. Then the rules of the ZPA are also transferred to the ZCR zone. 
However, if the ZCR zone is not within a ZPA zone, this case cannot occur and the rules remain constant.

The ZPA air protection zones

The ZPA zones („zones de protection de l’air“) are not permanent; they are activated in case of high air pollution and bad weather only. They can cover the territories of whole metropolitan areas or refer to a specific geographical zone. Therefore, the limits of each environmental zone are precisely defined in advance.

These zones are only valid in case of an air pollution peak. This means that traffic restrictions will only be valid when established limits for particulate matter and nitrogen oxides are exceeded during several days. Then, different categories of the Crit’Air badge can be excluded from traffic in order to limit the emission of the named pollutants. Recommendations have been developed in advance regarding the colours that will be excluded in case of an air pollution peak. However, the correct restrictions will always be decided by the department’s prefect in the concrete event of high air pollution. 

Driving bans in a ZPA do not become effective on the same day as they are announced. They are usually announced during the afternoon or evening and for the next day. The driving bans then apply to the entire ZPA. If a ZCR zone is located within a ZPA zone, rules will be overwritten during an air pollution peak. Only when the pollution peak ended, usual permanent traffic restrictions for badge categories apply again. 

The ZPAd regional air protection zones

The ZPAd („zone de protection de l’air départementale – ZPAd“) are environmental zones that apply to a whole department instead of smaller geographical areas.  It is not possible to define in advance in which local areas within the ZPAd traffic restrictions will occur due to an air pollution peak. The precise area of application of the restrictions, as well as the concrete measures set, must be specified on a case-by-case basis by an additional order. In theory, a whole department could be affected by a specific measure, even though, this is relatively unlikely. Anyway, the prefect is responsible for imposing driving bans if necessary (e.g. on one or more communities, highways or the whole department). Crit'Air vignettes, which must be excluded from traffic, are also decided in these cases.

Order here a French Crit'Air Vignette for French ZCR/ZPA zones

Environmental zones in France

The limits of ZCR zones and ZPA zones can be complex
In general, it is important to know that there can always be cases where a city's ZCR zone is established in the city's centre and that the rest of the city remains free from restrictions. In the surrounding area outside the city there is again a ZPA zone, which is valid for the suburbs and municipalities surrounding the city. In this case, drivers should consider to what extent they find themselves inside which zone or not, and if yes, which norms are valid in each case. This is particularly important because there are no signs outside de ZCR zone indicating the ZPA zone. The daily status of each zone is furthermore not accessible to foreigners through the press or the radio. In such cases, drivers can only resort to the Green-Zones app, which shows the current state of a ZPA or ZCR zone, that is, which Crit'Air vignette categories (with which plate number) are allowed to access and to drive through the zone in question and during which times of the day.

The Green-Zones app for all environmental zones in Europe! You will find all the necessary information about the Green-Zones app here.

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