Clann events/competitions occur at different times throughout the year. Some are small events run over lunchtime. There will also be occasional Clann Days called Feis days. They will usually occur each term and may be one-class or half-day events.
Many clann events will require a clann to nominate one or more students to represent them e.g. pick some members for a table tennis competition, or a quiz etc. The decision of who is nominated is made primarily by the Taoiseach advised by the Tanaiste and Runai, although the whole clann may be consulted if necessary. The names of nominated persons must then be given in writing to the Clann Coordinator before the event.
Healthy rivalry between clanns is encouraged. However, clanns are expected to act in a mature manner and not let rivalry become too intense.