The new system has as its objective the guaranteeing of animal welfare and preventing the propagation of disease during transport or in collection centers. From now on a zero tolerance policy will be in place regarding overloading, and the number of animals per truck will be decreased (instead of transporting 234 pigs per trailer, a maximum of 216-220 head will be permitted).
http://www.revarco.nl/nieuws/21/transport-en-vervoersregels-aangepast/