Generators don't run Adblue - well not many and no Hospital machines that I know of - even brand new installations (we're doing one at the moment). There are a few base load stations using diesel machines that use it, but they run fine without it and there's no feedback to derate the engine etc if it's not there.
Even the latest tier 4 final stationary engines we are seeing here in Aus don't use Adblue. Given the stationary engine emissions standards are around 10 years behind on highway there's a while to go yet before there's any requirement for it thankfully.
I'd be more worried about getting any groceries as Coles and Wooies all run Euro gear as part of their 'green' credentials, so the entire supermarket supply chain is going to be the biggest issue should this arise.
I agree they'll have to relax rule temporarily to allow trucks to be run without it - the OEM's will make a killing.

