The ISMF White List is a list of products all relevant to competitive ski mountaineering - provided by various manufacturers which are member of the ISMF Manufacturers’ Pool. Each product is self-certified by the manufacturer to fit within ISMF Sporting Regulations. Therefore when a skier looks at the ISMF White List he/she knows that the products are suitable for use in ISMF races.
Items which do not feature in the list are not necessarily outside of the guidelines, it's just that the manufacturer has chosen not to participate in this initiative, therefore the validity of products not listed should be checked directly with information provided by the manufacturers. In any case the equipment used in ISMF competitions must comply with the ISMF Sporting Rules.