Dossierholder BCT

The Dossierholder BCT issues so-called smartcards for use with the onBoard computer Taxi (BCT).

These onboardcomputercards are issued with certificates from the hierarchy of the Public Key Infrastructure of the Dutch government (PKIoverheid). The onboardcomputercards are used tot gain acces tot the onBoard Computer Taxi and to digitally sign the data gathered by the BCT.

The Dossierholder BCT is not an independent Trust Service Provider (TSP) under PKIoverheid, but is part of the central TSP of the Ministry of Infrastructure and Water Management. More information on this TSP, including the (sub)rootcertificates and CRLs, can be found here. As part of this TSP the Dossierholder has been certified against the ETSI EN 319 411-2 and ETSI EN 319 411-1 standard.

The issuance and use of the cards are bound by both rights and obligations. For instance only a taxidriver that meets certain criteria can request a Driverscard. The following information on the issuance and use of onboardcomputercards is available in Dutch:

The Dossierholder BCT issues two types of card. These are onboardcomputercards and systemcards. The onboardcomputercards are used by the different users of the onboard computer, while the systemcard is used by the device itself. The certificates on both types of card have their own hierarchy, of which the following information is available:

Onboardcomputercards CA

Systeemkaarten CA

Responsible Disclosure
If you discover a weak spot in one of the ICT systems of the Ministry of Infrastructure and Water Management, let us know before you make this known to the outside world. We can then take measures first. We call this method 'responsible disclosure'.

The Ministry of Infrastructure and Water Management makes use of the facilities described on For more information, see for example how to make a report and the further conditions on the 'Responsible Disclosure' page of