- work with asbestos, cf. Chapter 4; - erection, dismantling, change and inspection of scaffolding, cf. Chapter 17; - manual high-pressure jetting with pressures exceeding 250 bar, cf. Chapter 20; - excavation work deeper than 1.25 metres, cf. Chapter 21; - work on operational control and safety monitoring, cf. Chapter 24; - work under water or under increased ambient pressure, cf. Chapter 26; - rock work, cf. Chapter 27; - work on carbon dioxide systems, cf. Chapter 28; - the risk of avalanches, cf. Chapter 30.