P.R. Laws tit. 31, § 1557
The usufructuary may personally claim the credits due which form a part of the usufruct, if he has given or gives the proper security. If he has been released from giving security or if he cannot give it, or if that given is not sufficient, he shall require the authorization of the owner or, in his default, of the Court of First Instance, to collect the said credits. The usufructuary who has given security may invest the capital he receives in any manner he may deem fit.
The usufructuary who has not given security shall place the said capital at interest, upon agreement with the owner; in default of such agreement, under judicial authorization; and in every case, with security sufficient to preserve the integrity of the capital in usufruct.
History —Civil Code, 1930, § 435;.