Can. 29 General decrees, by which a competent legislator makes common provisions for a
community capable of receiving a law, are true laws and are regulated by the provisions of
the canons on laws.
Can. 30 A general decree, as in can. 29, cannot be made by one who has only executive
power, unless in particular cases this has been expressly authorized by the competent
legislator in accordance with the law, and provided the conditions prescribed in the act
of authorization are observed.
Can. 31 ß1 Within the limits of their competence, those who have executive power can
issue general executory decrees, that is, decrees which define more precisely the manner
of applying a law, or which urge the observance of laws.
ß2 The provisions of can. 8 are to be observed in regard to the promulgation, and to
the interval before the coming into effect, of the decrees mentioned in ß1.
Can. 32 General executory decrees which define the manner of application or urge the
observance of laws, bind those who are bound by the laws.
Can. 33 ß1 General executory decrees, even if published in directories or other such
documents, do not derogate from the law, and any of their provisions which are contrary to
the law have no force.
ß2 These decrees cease to have force by explicit or implicit revocation by the
competent authority, and by the cessation of the law for whose execution they were issued.
They do not cease on the expiry of the authority of the person who issued them, unless the
contrary is expressly provided.
Can. 34 ß1 Instructions, namely, which set out the provisions of a law and develop the
manner in which it is to be put into effect, are given for the benefit of those whose duty
it is to execute the law, and they bind them in executing the law. Those who have
executive power may, within the limits of their competence, lawfully publish such
ß2 The regulations of an instruction do not derogate from the law, and if there are
any which cannot be reconciled with the provisions of the law they have no force.
ß3 Instructions cease to have force not only by explicit or implicit revocation by the
competent authority who published them or by that authority's superior, but also by the
cessation of the law which they were designed to set out and execute.