P.R. Laws tit. 5, § 524
(a) The importation or distribution in Puerto Rico of commercial fertilizers or amendments to the soil deficient as to the guaranteed analysis is hereby forbidden.
(b) A commercial fertilizer or soil additive shall be deemed adulterated of deficient:
(1) If it contains any raw material or other substance whose use in said commercial fertilizer or amendment to the soil has not been authorized by the Secretary.
(2) If the analysis of an official sample shows that there is a deficiency in the composition of the commercial fertilizer or amendment to the soil according to its guaranteed analysis.
(3) If it contains noxious substances in amounts that are harmful or prejudicial to the crops or plants on which it is used.
(4) If it contains additional materials to those authorized by the Secretary for that formula.
History —May 8, 1973, No. 19, p. 57, § 6; July 20, 1979, No. 171, p. 443, § 5; Aug. 24, 1997, No. 103, § 5, eff. 30 days after Aug. 24, 1997.