128.1. A mobile refuge station installed on or after 11 july 2013, in addition to having the characteristics prescribed by sections 21, 109, 126, 127 and 128, must(1) ensure its tightness by means of appropriate pressure tests according to the recommendations of the manufacturer, with the results entered in a register;
(2) be the subject of a monthly preventive maintenance program which necessarily includes maintenance every time it is moved and whose results are entered in a register;
(3) be located so that it is impossible for a vehicle to collide with the mobile refuge station.