ACCEPTANCE ENVIRONMENT Trust Service Provider - TSP (Dutch site)

This site contains the relevant information about the Acceptance environment of the Trust Service Provider of the Ministry of Infrastructure and Water Management, the so-called IenW TSP.

This information is especially relevant for manufacturers of on-board computers taxi (BCT) devices and software developers of applications that process files created by the BCTs.

Terms and conditions and other documentation

Certification Practice Statement, terms and conditions

On-board computer and system cards from the Acceptance environment are exclusively intended for manufacturers of BCTs and software suppliers that process files from the BCTs in order to determine the correct operation of their products.

Other documentation

The following documentation is relevant for manufacturers of onboard computers:

The specifications of the certificate profiles are published on the Production website

CA certificates and CRL's

The IenW TSP 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 Certification Authority (CA) hierarchy.

To verify the validity of a certificate requires at least the following checks are required:

  • the certificate must not be expired;
  • the CA hierarchy must lead to a valid PKIoverheid root CA certificate;
  • the certificate must not be revoked i.e. the certificate serialnumber must not be listed on the so called Certificate Revocation List (CRL).

Below the download links of CA certificates and CRL's are listed both for the G3 and expired G2 generation.

CA Certificates generation G3 Acceptance

Root CA (all card types)

CA certificates Acceptance Taxidriver and Inspection cards

CA certificates Acceptance Entrepreneur and Control cards

CA certificates Acceptance systemcards

CRL's generation G3 Acceptance

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