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Information point and medical examinations

The CAOP has set up an independent information point for current and former employees of NedTrain, including temporary workers and self-employed professionals, with questions about chromium-6. Employees can always go to their supervisor with any questions they may have, but because it is of the utmost importance to us that everyone feels free to ask their questions, we set up this information point. You can also contact this CAOP information point for an independent, targeted medical examination.


The CAOP Centre for Public Labour Relations is an independent foundation supervised by social partners that serves as an important knowledge centre in the field of labour. The CAOP also processes requests for independent targeted medical examinations. Current employees, ex-employees, temporary workers and self-employed professionals can contact the centre with all their queries and questions.

The information point is open from Mondays through Fridays from 9 am to 5 pm. To reach the information point, simply call +31 (0)70 376 54 58. For more information, go to the website of the CAOP/.

Questions or comments? Please send us an e-mail

Or a letter:
CAOP / Chromium 6 NedTrain Information Point
Antwoordnummer 10689
2501 BW The Hague

When is a medical examination relevant?

If there is a chance that you were exposed to chromium-6 during your work and/or if you suspect you may have symptoms related to exposure, you can register for a medical examination. A medical examination only has added value if you have one of the following symptoms. If you develop any such symptoms in the future, this offer will still stand. This offer for a medical examination applies to current and former employees of NedTrain and NS, as well as self-employed professionals who work or worked for NedTrain.

Exposure to chromium-6 can lead to symptoms including:

  • Nose wounds/nosebleeds
  • Rashes, ulcers, or infections of the skin or eyes
  • Deteriorated lung capacity/lung function