37.11. Up to 31 December 2009, the load maximum prescribed by section 20 for classes A.46 to A.49, A.56 and A.57 shall be increased by 8,000 kg in respect of the combinations of road vehicles where the semi-trailer was assembled prior to November 1998.
Up to 31 December 2009, the load maximum prescribed by section 20 for classes A.45 and A.55 shall be increased by 6,000 kg in respect of the combinations of road vehicles where the semi-trailer was assembled prior to November 1998.
Up to 31 December 2004, the load maximum prescribed by section 20 for classes A.48 and A.49 shall be increased by 12,000 kg in the case of tank semi-trailers and semi-trailers equipped with a non-detachable dumping mechanism.
The increasing period referred to in the third paragraph shall be extended to 31 December 2009 in the case of tank semi-trailers carrying liquids.