中国共产党百科∣党的全国代表大会 the National Congress of the Party

The National Congress of the Party shall be held once every five years and convened by the Central Committee. In the event that the Central Committee deems it necessary or more than one third of provincial-level Party organizations put forward a request, a National Congress may be convened early. Except in unusual circumstances, it may not be postponed.
党的全国代表大会每五年举行一次，由中央委员会召集。中央委员会认为有必要，或者有三分之一以上的省一级组织提出要求，全国代表大会可以提前举行；如无非常情况，不得延期举行。