normas contenidas en el marco de la ley n 20296 que establece las disposiciones para la instalacion mantencion e inspeccion periodica de los ascensores y otras instalaciones similares que complementa el d.s. n 47 de 1992 - ordenanza general de urbanismo y construcciones relativas a escaleras mecanicas rampas moviles y ascensores standards on escalators moving walkways and lifts contained in law no. 20296 establishing provisions for the installation maintenance and periodic inspection of lifts and other similar types of machinery which supplements supreme decree d.s. no. 47 of 1992 - general ordinance on urban planning and construction ol start1 the general ordinance on urban planning and construction oguc regulates the general law on urban planning and construction and governs the administrative procedure urban planning process urbanization process construction process and technical standards for design and construction established by these two laws. in accordance with the above the following standards developed by the national institute of standardization of chile inn have been incorporated into the general ordinance on urban planning and construction linch3344 1 2013 - seguridad de escaleras mecanicas y rampas moviles - parte 1 construccion e instalacion official chilean standard nch no. 3344 1 2013 - safety of escalators and moving walkways - part 1 construction and installation li linch3344 2 2013 - seguridad de escaleras mecanicas y rampas moviles - parte 2 reglas para la mejora de la seguridad de las escaleras mecanicas y de las rampas moviles existentes official chilean standard nch no. 3344 2 2013 safety of escalators and moving walkways - part 2 rules for improving the safety of existing escalators and moving walkways li linch3362 2014 - requisitos minimos de diseno instalacion y operacion para ascensores electromecanicos frente a sismos official chilean standard nch no. 3362 2014 - minimum requirements for the design installation and operation of electromechanical lifts with a view to ensuring that they do not pose a risk to humans in the event of an earthquake li ol