Never used DarkRP or coded for it, but this should work. You could change that fail message to whatever you wanted it to say.
"You must have bronze access...blah blah"
customCheck = function(ply) return ULib.ucl.query(ply, "bronze") end,
CustomCheckFailMsg = "You must be Tier 1(Bronze) or higher to join this job!"
You sir, are a god among men. Tried and true.
