3 points I never understood about business garage doors: safety and security stickers and placards are code items

https://atomic-wiki.win/index.php/Top_Misconceptions_Regarding_Commercial_Garage_Door_Maintenance_and_Service

3 things I never knew about commercial garage doors: safety and security decals and placards are code items, yearly training reduces incidents, and lockout-tagout points should be recorded for staffs.