§1. In those matters in which hierarchical recourse suspends the execution of a decree, the petition mentioned in can. 1734 also has the same effect.
§2. In other cases, if the author of the decree has not decreed the suspension of execution within ten days after receiving the petition mentioned in can. 1734, an interim suspension can be sought from his hierarchical superior who can decree a suspension only for grave reasons and always cautiously so that the salvation of souls suffers no harm.
§3. If the execution of the decree has been suspended according to the norm of §2 and recourse is proposed afterwards, the person who must deal with the recourse according to the norm of can. 1737, §3 is to decide whether the suspension must be confirmed or revoked.
§4. If no recourse is proposed against the decree within the established time limit, the interim suspension of the execution given according to the norm of §§1 or 2 ceases by that very fact.
Source: Code of Canon Law (Vatican.va)