Royal Belgian Ski Federation 

FIS inscription rules (to be signed and uploaded by all athletes)

FIS inschrijvingsreglement
Règlement d'inscriptions FIS

Belgian rulebook 'Vademecum'

Vademecum 2019-2020 (dutch)
Vademecum 2019-2020 (french)

Belgian 'Codes of Conduct' that will be implemented in FIS inscription rules next season

Codes of Conduct NL 
Codes of Conduct FR 

 Ski lengths 

Please refer to the FIS rules (p.2-3) Look out for the * and ** in the tables