This limit applies to newly built and modified 1435 mm standard gauge railway steam, electric, diesel locomotives and various vehicles. Note: "Newly built" refers to the rolling stock designed and manufactured after the implementation of this standard. "Modified" refers to the rolling stock designed and manufactured before the implementation of this standard but required to be modified according to this standard.
GB 146.1-1983 history
2020GB 146.1-2020 Gauge for standard gauge railways—Part 1: rolling stock gauge
1983GB 146.1-1983 Rolling stock gauge for standard gauge railways
1959GB 146-1959 Standard Gauge Railway Rolling Stock Gauge and Building Approach Gauge Classification and Basic Dimensions