Modify registration certificate I - technical modification

If compliance with regulations is verified by a general operating permit (ABE) for vehicle parts or a parts certificate, an acceptance certificate is required, which may form the basis for the correction of the registration certificate Part I (old vehicle registration document) and the registration certificate Part II (old vehicle registration document) by the registration authority. This does not apply to vehicle parts if the ABE does not stipulate an acceptance requirement.

Tip:
Before installation or conversion, an officially recognized expert for motor vehicle traffic or a test engineer from a monitoring organization should be consulted to determine whether the type approval is affected or whether the modification can be approved at all and thus whether a positive expert opinion can be issued for a new type approval.

Note:
Certain technical modifications must be reported to the registration authority without delay and, depending on the type of modification and the proof required, must first be inspected by the technical inspection authority or an approved inspection organization (TÜV, DEKRA, GTÜ, KÜS, GTS, FSP). This includes, for example

• Changes to the vehicle class or the vehicle and body type
• Change in cubic capacity, rated power, fuel type or energy source
• Increase in the maximum design speed
• Reduction of the maximum design speed if this is relevant to the driving license or registration
• Modification of the permissible axle loads, the total mass, the drawbar load or trailer load
• Increase in vehicle dimensions, except for passenger cars and motorcycles
• Changes to the number of seats or standing room in buses and coaches
• Changes to the exhaust or noise values, insofar as they affect vehicle tax or traffic bans
• Use of other wheel/tire combinations

What documents do I need?

• Valid original identity card, passport or national passport including the electronic residence permit (eAT) of the applicant vehicle owner
• in case of representation with written power of attorney
  
  • Additionally: identity card or passport of the authorized person
• Registration certificate part I or vehicle registration document
• Registration certificate part II (formerly: vehicle registration document)
  
  • If the ZB II is in the possession of a third party (e.g. leasing bank), you must arrange for it to be sent to the licensing authority. You can find more information on this in the service description under "Further information".
• Expert opinion or operating licence of the parts manufacturer
• Confirmation of acceptance by an approved testing organisation
  
  • e.g. TÜV, DEKRA, GTÜ, KÜS, GTS, FSP
• valid test report on a general inspection
  
  • e.g. TÜV, DEKRA, GTÜ, KÜS, GTS, FSP
• Expert opinion or manufacturer's certificate
• licence plates, if applicable
  
  • In the case of some technical changes that affect the total weight, the general inspection deadlines for the vehicles concerned may also change and the general inspection sticker must therefore be re-affixed accordingly.
• if registered to companies
  
  • in addition:
    
    • Current and valid business registration and, if available, current and valid extract from the commercial register (also as a copy)
    • Power of attorney if the authorized person does not personally submit the application on site