Acts or decisions that exceed the legal authority or power granted to a person, corporation, or government entity. Ultra vires actions are typically void because they go beyond what is legally permitted.
From Latin 'ultra vires,' meaning 'beyond powers' or 'outside the authority,' combining 'ultra' (beyond) and 'vires' (powers/strength). This concept developed in corporate and administrative law to limit entities to their authorized scope of action.
Ultra vires is like catching someone using a fake ID - when a corporation or government agency acts outside their legal authority, courts can declare those actions completely invalid, as if they never happened, no matter how well-intentioned they were!
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