When other forms of transport are inappropriate

Whilst carriage by other forms of transport may be possible, States should evaluate a risk analysis which should include consideration of:

1. Length of journey. Transport by other forms may result in an unrealistic journey time and could affect the viability of the dangerous goods.
2. Infrastructure. The availability of other forms of transport may be limited.
3. Security. The comprehensive security provisions of the air mode may reduce the possibility of unlavful interference (theft, etc.).
4. Routing. Transport by air may result in a reduced risk of exposure of the public to the dangerous goods in the event of an incident or accident. The risk of piracy may also be significantly reduced.
5. Cost. The cost of carriage by other forms of transport may be economically unreasonable. However, the decision to grant an exemption should not be based on cost alone.