Railways issues rules to carry liquid oxygen carrying tanks using trains April 17, 2021 Railways has issued transportation rates, weight requirements and levied GST Railways issues rules to carry liquid medical oxygen tankers across the country in trains under its roll on roll off scheme, which means these trucks will drive on to trains and the trains will move the trucks to destination. This follows Maharashtra, the Western State in India battling the more infectious Covid-19 surge, requesting Railways to permit transportation of trucks carrying liquid medical oxygen (cryogenic tankers). Railways has issued transportation rates, weight requirements. The rules are valid till October 15.