The basic accident prevention regulation of the German statutory accident insurers, DGUV Vorschrift 1, requires employers to instruct their staff on safety and health at work. Paragraph 4 says this Unterweisung, the safety briefing, must be repeated when necessary, at least once a year, and must be documented. A sample form from the accident insurer BG ETEM shows what documented means. Each employee signs below this sentence: Mit meiner Unterschrift bestätige ich, dass ich an der Unterweisung teilgenommen und den Inhalt verstanden habe. With my signature I confirm that I attended the briefing and understood its content. Paragraph 15 then requires employees to act according to the briefing and the employer’s instructions.