As soon as a company is involved in the transportation of dangerous goods, a dangerous goods safety adviser must be appointed. The dangerous goods officer's training certificate must correspond to the mode of transport on which the company transports dangerous goods.
There are training courses and examinations for

• road transport,
• rail transport,
• inland waterway transport and
• maritime transport

You can take the examination as a basic examination, renewal examination, supplementary examination and repeat examination. For the basic examination, you must provide proof of a training course of at least 22.5 hours for the mode of transport tested. If you already have a certificate but would like to extend it to an additional mode of transport, you take the supplementary examination. For this, you must provide proof of a 7.5-hour training course for the additional mode of transport. An extension examination must be completed before your previous training certificate expires. Please note the following points for the examination:

• The duration of the examination depends on the number of modes of transport tested. It is between 100 (one mode of transport) and 250 minutes (maximum of four modes of transport) for the basic examination and between 50 and a maximum of 125 minutes for the extension examination. The duration of the supplementary examination is between 50 (one mode of transport) and 150 minutes (maximum of three modes of transport).
• The examination is conducted in writing. You can use the relevant regulatory texts for the respective modes of transport and a non-programmable calculator as aids. The use of other electronic aids is not permitted.

You can take the examination at any IHK in Germany, regardless of the training center and your place of residence.