US lawPuerto RicoRegulationsDepartamento del Trabajo y Recursos HumanosRegl. 1277, art. 203.9 — shall be provided; and where a203.9Regl. 1277, art. 203.9shall be provided; and where aLast amended: 2005Length: 13 wordsOfficial source Cite as Reglamento Núm. 1277, Art. 203.9car-leveling device is used, landing sill guards conforming to Part I, Section 110,