Source: https://canonlaw.ninja/?nums=7-22
Timestamp: 2019-04-21 20:28:10+00:00

Document:
Canon 7. A law is established when it is promulgated.
Canon 8. §1. Universal ecclesiastical laws are promulgated by publication in the official commentary, Acta Apostolicae Sedis, unless another manner of promulgation has been prescribed in particular cases. They take force only after three months have elapsed from the date of that issue of the Acta unless they bind immediately from the very nature of the matter, or the law itself has specifically and expressly established a shorter or longer suspensive period (*vacatio*).
Canon 9. Laws regard the future, not the past, unless they expressly provide for the past.
Canon 10. Only those laws must be considered invalidating or disqualifying which expressly establish that an act is null or that a person is effected.
Canon 11. Merely ecclesiastical laws bind those who have been baptized in the Catholic Church or received into it, possess the sufficient use of reason, and, unless the law expressly provides otherwise, have completed seven years of age.
Canon 12. §1. Universal laws bind everywhere all those for whom they were issued.
§3. Laws established for a particular territory bind those for whom they were issued as well as those who have a domicile or quasi-domicile there and who at the same time are actually residing there, without prejudice to the prescript of can. 13.
Canon 13. §1. Particular laws are not presumed to be personal but territorial unless it is otherwise evident.
Canon 14. Laws, even invalidating and disqualifying ones, do not oblige when there is a doubt about the law. When there is a doubt about a fact, however, ordinaries can dispense from laws provided that, if it concerns a reserved dispensation, the authority to whom it is reserved usually grants it.
Canon 15. §1. Ignorance or error about invalidating or disqualifying laws does not impede their effect unless it is expressly established otherwise.
Canon 16. §1. The legislator authentically interprets laws as does the one to whom the same legislator has entrusted the power of authentically interpreting.
Canon 18. Laws which establish a penalty, restrict the free exercise of rights, or contain an exception from the law are subject to strict interpretation.
Canon 19. If a custom or an express prescript of universal or particular law is lacking in a certain matter, a case, unless it is penal, must be resolved in light of laws issued in similar matters, general principles of law applied with canonical equity, the jurisprudence and practice of the Roman Curia, and the common and constant opinion of learned persons.
Canon 20. A later law abrogates, or derogates from, an earlier law if it states so expressly, is directly contrary to it, or completely reorders the entire matter of the earlier law. A universal law, however, in no way derogates from a particular or special law unless the law expressly provides otherwise.
Canon 21. In a case of doubt, the revocation of a pre-existing law is not presumed, but later laws must be related to the earlier ones and, insofar as possible, must be harmonized with them.
Canon 22. Civil laws to which the law of the Church yields are to be observed in canon law with the same effects, insofar as they are not contrary to divine law and unless canon law provides otherwise.

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