Three-level safety education means that companies, projects and teams educate and train construction workers respectively, and they are not allowed to take up their posts until they pass the examination. On our side, people collect their ID cards before entering the venue, then sign in, fill in the three-level education card, make papers, take photos and leave pictures and materials. The construction site is basically a formality, but it must be signed by itself. Those who can't write can press their fingerprints. Educational content can be searched online, and there are many. This is very important. Every inspection should check whether there is anything wrong. Although it is fake now, you must sign it yourself. That's all that matters.