A few years ago I was asked to participate in a hazard assessment for a manufacturer who wanted to review the procedure for hydrogen-powered vehicles to be freed of hydrogen gas. I got the feeling very early into this hazard assessment that those in the room knew about an event of some type, but wanted me to walk them through the venting process so they could quietly find their error(s).
I conducted many flaring/venting operations on much larger scales in my time, but this venting, although necessary, may be a tad much for a car dealership to manage. I am guessing this is becoming a major thing for the ramp-up of selling H2 powered vehicles as I found other manufacturers who already have written procedures for this to be done by dealerships.