nom-em-003-asea-2016 especificaciones y criterios tecnicos de seguridad industrial seguridad operativa y proteccion al medio ambiente para el diseno construccion pre-arranque operacion y mantenimiento de las instalaciones terrestres de almacenamiento de petroliferos excepto para gas licuado de petroleo emergency mexican official standard nom-em-003-asea-2016 industrial safety operational safety and environmental protection specifications and technical criteria for the design construction pre-start up operation and maintenance of onshore petroleum storage facilities other than those used for liquefied petroleum gas 3 pages in spanish the notified emergency mexican official standard is applicable throughout national territory and is binding on all persons responsible for the design construction pre-start up operation and maintenance of onshore facilities used for the storage reception and delivery of petroleum products additives and biofuels other than liquefied petroleum gas. the notified emergency mexican official standard applies to the following petroleum storage facilities used in distribution activities which have a total storage capacity of 50m3 314.5 barrels or more in horizontal and or vertical underground and or above-ground tanks the storage of additives and biofuels used in gasoline and or diesel blending and preparation processes the design construction pre-start up operation and maintenance of vapour recovery systems in facilities located in any of the places referred to in appendix i of this emergency mexican official standard and the following aspects and operations in reception and delivery systems located in petroleum additive and biofuel storage facilities the point where the storage facility connects to a pipeline transport system or an onshore facility receiving or delivering via tanker-ship loading of tanker-truck from storage tank loading of tanker-car from storage tank unloading from tanker-truck to storage tank unloading from tanker-car to storage tank transfer from tank to tank. this emergency mexican official standard does not apply to the following storage spaces integrated in processing units the capacity of which will be limited to whatever is necessary to ensure process continuity the storage of chemical substances not mentioned in this emergency mexican official standard petroleum storage at service stations where diesel and gasoline are stored. petroleum storage at service stations storing diesel and gasoline for self-consumption and retail sale and the injection blending of additives and biofuels in pipelines tanker-trucks and tanker-cars