Well Exalt, I re read my post several times and no where said or implied that ammonia was transported without insurance, so no need to inform the authorities. Other luminaries on this thread have commented on the additional skills and requirements necessary to keep ammonia plants SAFE and transport it safely, skills not held by lift truck engineers or operators who may complete refuelling activities. I can not invisage a zero accidents scenario....after the first accident I foresee uk hse imposing significant controls and insurance rate hikes. Likewise appropriate authorities in other countries. If the truck ever does make an appearance overall you need to look at the overall environmental cost... it may or may not be zero tailpipe emissions but what is the environmental cost of ammonia production and transport??