Mr. Adam introduced the D field test document (AECS-03-05). The experts held discussions on the following topics:

• The rules do not specify which kind of retarder is mandatory. N informed that some tunnels in Norway have slopes of about 10%, i.e. some high performance retarders are necessary.
• Paragraph 3 indicates which kinds of combinations are allowed in D
• Test to last until 2016.
• Some schemes could be added to the table.
• Political discussions in Germany are ongoing: infrastructure, technical requirements.