Vacatio legis
Vacatio legis Latin: absence of law is the technical term in law which designates a period between the announcement of a legislation together with its entering into force.
This concept also exists in the Catholic canon law.
Catholic canon law
Jus novum c. 1140-1563
Jus novissimum c. 1563-1918
Jus codicis 1918-present
Other
Sacramentals
Sacred places
Sacred times
Supra-diocesan/eparchal structures
Philosophy, theology, and necessary view of Catholic canon law
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Pars dynamica trial procedure
Canonization
Election of the Roman Pontiff
Academic degrees
Journals and professionals Societies
Faculties of canon law
Canonists
In the canon law of the Latin Church, the vacatio legis is three months for universal laws, and one month for particular laws, unless the law itself establishes a longer or shorter period of time. Months are reckoned according to the calendar from the date of publication. The law can stipulate a longer or shorter time of vacatio than that which is stipulated generally.
Stanislaus Woywod says of vacatio legis: