The Ministry of Labour won't fine the University of Windsor following an investigation.
It was launched when members of CUPE 1393 noticed students rolling a container the union said was full of liquid nitrogen down Wynadotte West.
At the time of the alleged incident CUPE members were on strike. They claimed moving the nitrogen was against safety regulations, and a danger to the public.
The University acknowledged having students move the tank wasn't proper.
But now the Ministry of Labour has wrapped up its investigation with no penalties for the university.