A listing of the rule change proposals approved by the IAC Board of Directors appears below. Please note that these lists do NOT represent all rule changes which appear in the IAC Official Contest Rules  each year. In addition to the proposals listed here, changes to CIVA regulations, changes to the Aresti Catalogue (Condensed), Board directives, and editorial clarification of existing rules, can all affect the final rules which appear in the current IAC Official Contest Rules book.