P.R. Laws tit. 13, § 33211
(a) Authorization. —
(1) In general. — The Secretary shall promulgate such rules and regulations as necessary for compliance with this Code.
(2) Amendments to law. — The Secretary shall promulgate any such other regulations as necessary by reason of amendment to the law related to taxes imposed by this Code.
(b) Retroactive nature of regulations and decisions by the Secretary. — The Secretary may prescribe the limit, if any, up to which any regulations or decisions by the Secretary under this Code shall apply without retroactive effect.
(c) Circular letters or administrative determinations. — The directives, information bulletins, circular letters, administrative determinations, or other less formal regulations (interpretative rules) of a general application issued by the Secretary of the Treasury in reference to the application of this Code or any rules or regulations promulgated thereunder, constitute the official interpretation of the law, which the Secretary of the Treasury is in charge of interpreting, merit the corresponding deference, and shall be presumed to be correct before the courts.
History —Jan. 31, 2011, No. 1, § 6051.11, retroactive to Jan. 1, 2011.