Carte grise Modified vehicle and certificate of registration (ex-vehicle)

Verified 10 January 2025 - Directorate for Legal and Administrative Information (Prime Minister)

Carte grise If you transform (or have transformed) your vehicle, and this results in a change in the technical characteristics of the vehicle, you will need to have it modified. This is the case, for example, if you convert a commercial vehicle into a private vehicle or if you debride your motorcycle (after having reached 2 years of experience with your A2 license obtained before your 24 years). We present you with the information you need to know.

Carte grise Within 1 month, you must request the technical data update of your vehicle's GTT if you do any of the following:

  • Modification affecting the characteristics of the descriptive note (power, weight and dimensions, axles, braking, operating, steering and visibility components, energy, polluting emissions and noise)
  • Change in the type of vehicle
  • Debriding a motorcycle by a professional, moving it from category A2 to A (case of the rider who has been driving for 2 years with a license A that he obtained before his 24 years).

In particular, the following cases are covered by the declaration:

  • Addition of a sidecar
  • Installation of a van as a camper
  • Installation of a car in an ambulance or vehicle capable of transporting a person in a wheelchair
  • Conversion of a commercial vehicle into a private vehicle or vice versa
  • Modification or fitting of a bodywork

Warning  

The unclamping of motorcycles is permitted for new motorcycles and motorcycles already in use provided that they are equipped with an anti-lock braking system.

Carte grise However, a minor transformation does not require a change to your Carte grise Thus, for example, in the following cases, there is no modification of the

  • Installation of a car seat on the private vehicle
  • Changing seat covers or floor mats
  • Installation of a navigation aid system
  • Installation of decorative elements when they do not reduce the visibility of the driver

FYI  

Tinted films or glazing on the front side windows and on the windshield of the vehicle shall be prohibited if they have a degree of transparency lower than 70%.

You have 1 month carte grise to request a new

This request is made on the internet using the online service on the website of theANTSANTS : National Securities Agency :

Carte grise Request a procedure following the transformation of the vehicle

You must identify yourself via France Connect.

Of numeric dots (with computers, printers and scanners) are available in each prefecture and in most sub-prefectures. You can do the walk there. You can be helped by digital mediators if you have problems using the Internet.

You can also be accompanied in your approach by a France Services house :

Who shall I contact

You can also be accompanied in your approach by a authorized motor vehicle professional :

Warning  

Carte grise It is no longer possible to request a referral from the prefecture or sub-prefecture.

The documents to be provided vary according to the transformation: debriding a motorcycle (A2 to A), modification of the bodywork (example: to make it a camper), modification of the empty weight (example: addition of equipment for a disabled person).

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Debriding a motorcycle

With registration number

Modification of the bodywork

With registration number

Change in vehicle weight

With registration number

Other case

With registration number

Carte grise If you make changes to your vehicle before redoing the procedure in your name, the cost will be the cost of the vehicle with the new features.

If the changes are made later, the cost will vary depending on the type of change made.

You can determine the cost with the simulator:

Carte grise Calculate the cost of the certificate of registration (ex-

You must declare the modification of your vehicle within one month of the completion of the work.

Otherwise, you risk a fine of up to €750

Warning  

Wild debriding is strictly prohibited. The use of an unrestrained moped on the public highway is punishable by a fine of €1,500.

The moped may also be immobilized and impounded and confiscation may be ordered.

Who can help me?

Find who can answer your questions in your region

  • carte grise 34 00 - Information on the

    Carte grise National interactive voice server providing automated answers regarding the following:

    Carte grise If the user does not get the answer to his question about the taking of the vehicle or the driving license, he will be put in contact with an advisor of the National Agency for Secure Titles (ANTS).

    By telephone

    From the metropolis:

    34,00 (cost of a local call)

    From overseas:

    09 70 83 07 07

    From the foreigner:

    +33 9 70 83 07 07