2021DB11/T 1322.91-2021 Part 91 of the Technical Specifications for the Evaluation of Safety Production Grades: Operation Units of Integrated Pipe Gallery
2019DB11/T 1322.81-2019 Part 81 of Technical Specifications for Safety Production Rating Assessment: Song and Dance Entertainment Places
2018DB11/T 1322.71-2018 Part 71 of Technical Specifications for Safety Production Rating Assessment: Social Welfare Institutions
2016DB11/T 1322.1-2017 Technical Specifications for Grade Assessment of Safety Production Part 1: General Rules