Canon 1644. §1 If two conforming sentences have been given in cases concerning the status of persons, recourse to a tribunal of appeal can be made at any time, to be supported by new and serious evidence or arguments which are to be submitted within a peremptory time-limit of thirty days from the time the challenge was made.
Within one month of receiving the new evidence and arguments, the appeal tribunal must declare by a decree whether or not a new presentation of the case is to be admitted.

§2 Recourse to a higher tribunal to obtain a new presentation of the case does not suspend the execution of the judgement, unless the law provides otherwise or the appeal tribunal orders a suspension in accordance with can. 1650 §3.

§1. Si duplex sententia conformis in causa de statu personarum prolata sit, potest quovis tempore ad tribunal appellationis provocari, novis iisque gravibus probationibus vel argumentis intra peremptorium terminum triginta dierum a proposita impugnatione allatis. Tribunal autem appellationis intra mensem ab exhibitis novis probationibus et argumentis debet decreto statuere utrum nova causae propositio admitti debeat necne.

§2. Provocatio ad superius tribunal ut nova causae propositio obtineatur, exsecutionem sententiae non suspendit, nisi aut lex aliter caveat aut tribunal appellationis ad normam can. 1650, §3 suspensionem iubeat.