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There are no other Sacraments where laity may validly administer the Sacrament with the exception of marriage, and in marriage the laity are the ordinary ministers.
The Church only calls laity extraordinary ministers whenever they can administer a valid Sacrament and have permission to do so out of necessity. The laity cannot validly administer the Sacraments of Penance, Holy Orders, Extreme Unction, or Confirmation. In matrimony, the betrothed administer the Sacrament to one another ordinarily, that is, not out of necessity, but out of the ordinary way in which the Sacrament is celebrated. In baptism, laity only licitly baptize in cases of the imminent possibility death or the impossibility of finding a priest in a reasonable time (eg stranded on an island). For the Eucharist, laity cannot bring about the effects of transubstantiation, but can licitly administer a consecrated element of the Sacrament whenever clergy are not available in the liturgical setting (communion service rather than mass) or when the size of the congregation and lack of clergy necessitates it. Because laity have conditions of extraordinary circumstance placed upon them in order to licitly administer these Sacraments, they are called Extraordinary Ministers.