P.R. Laws tit. 29, § 91
When used in this subchapter, unless the context clearly indicates otherwise:
(a) Threatened strike.— Means a situation in which a labor organization informs the employer that on a certain date it will go on strike, or a situation in which there are clear indications of a rupture in the collective bargaining and there is the threat of a strike obviously evidenced by concrete acts aimed at or leading to the beginning of a strike movement.
(b) Grave emergency.— Means a strike, actual or threatened, in activities essentially necessary to the normal life of the community, whenever the interruption, total or partial, or the imminence of the interruption of such activities, by means of the said strike, is prejudicing or may prejudice seriously the health of the people or the public welfare as a result of the cessation in the rendering of any essential public service, as a result of all of which the normal life of the community is being or may be seriously affected.
History —May 22, 1965, No. 11, p. 17, § 1.