On May 20, 2024, the State Administration for Market Regulation and Standardization Administration of China issued GB/T 42615-2024 Safety Assessment Code for In-use Elevators, officially implemented on October 1, 2024. Standard core: First, scope of application, covering passenger elevators, freight elevators, escalators, moving walks, focusing on old elevators over 15 years; Second, assessment subject, third-party institutions with special equipment inspection qualifications, assessors certified; Third, assessment process: application → document review → on-site testing → safety assessment → report issuance; Fourth, 56 assessment indicators: 10 categories including basic information, technical documents, structural safety, safety components, traction braking, electrical, door system, emergency rescue, maintenance quality, use management; Fifth, four-level judgment: Level A (qualified normal use), Level B (basically qualified rectification within time limit), Level C (unqualified stop use renovation), Level D (seriously unqualified mandatory scrapping); Sixth, assessment cycle: once every 3 years for 15-20 years, once every 2 years for over 20 years; Seventh, legal effect: assessment report has legal effect, Level C/D elevators stopped immediately, regulatory authorities supervise rectification. The standard provides unified technical specifications for old elevator safety management in China, promoting scientific and standardized renovation.