Can. 1509
© Libreria Editrice Vaticana Source: vatican.va
Consuetudo sive contra sive praeter legem per contrariam consuetudinem aut legem revocatur; sed nisi expressam de eis mentionem facit, lex non revocat consuetudines centenarias vel immemorabiles; ad ceteras consuetudines quod attinet, valet can. 1502, § 2.
Wording unchanged since the Code took effect in 1991.
Read the whole title TITULUS XXIXDe Lege, de Consuetudine et de Actibus Administrativis 1488–1539