CHAPTER II - SUPERVISION OF THE ROAD
3. Observation posts
3.4 Staff
Each main post shall be placed under the responsibility of the post chief and his deputy, both recongnised fit for their office after a special examination under ASN control. They should have at their disposal at least three more person who have received basic training in the duties of an observation
post. The post chief or his deputy should maintain oral communications
with race control.
4.1.1 Flag signals to be used by the Clerk of the Course or his deputy
at the start line:
f) Black and white flag divided diagonally:
This flag should be shouwn once only and is a warning to the driver concerned
that he has been reported for unsportsmanlike behaviour.
These last three flags(in d, e and f) should be shown number which should be shouwn to the driver of whose car the number is displayed. The flag and numnber may be combined on a single board.
These flags may also be displayed at places other than the start line should
the Clerk of the Course deem this necessary.