Ok, also es gibt doch sehr begrenzte Zonen, die fürs Müllwegwerfen vorgesehen sind:
"6.7 LITTER ZONE
In road stages it is essential to provide three litter zones where
the riders can dispose of unwanted items (empty bottles, packaging,
food bags, etc.):
At the feed zone:
• The first litter zone is located in the 200 m prior to the start
of the feed zone,
• A second litter zone is located in the 200 m following the end
of the feed zone (as a minimum, to be adapted to the specific
features of the route).
Near the end of the course:
• A litter zone of 200 m located approximately 20 km from the
The organiser must ensure that the litter zones are cleaned up
after the riders have p assed through."
Ich habe aber (noch) nicht die dazu passende Vorschrift für die Fahrer gefunden ...