It is usually used as a synonym for self-conclusive ("that does not continue, that has an end in itself"), but there is a nuance that differentiates it, and that is that in 'self-conclusive' what is in itself are the data to deduce its strict situation or its conclusion. See prefix auto- , conclusive .
SELF-CONCLUDING in law and tax legislation: A conduct is called conclusive when the interested party acts and presents an appeal, formulates a request or accepts the decision, then taking it for granted that he knows the decision or administrative act. The call it SELF-CONCLUDING emphasizes the fact that the action itself allows to conclude the knowledge of the normative procedure.