IKLF competition rule. Competition Format & Structure category.
BOLT allows any kettlebell weight to be used in competition, unlike traditional Girevoy Sport which prescribes specific weights (e.g., 32kg for professional men, 24kg for professional women). However, each rank level has a minimum kettlebell weight requirement to qualify for that rank.
See the interactive comparison on KETTLEBELL MONSTER™ for filterable views and more detail.