| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | safety helmet | Construction Industry | Mandatory safety equipment at construction sites | 1 |
| 2 | safety helmet | Construction industry in the United Kingdom | Wearing safety helmets is mandatory on construction sites for all workers and visitors | 1 |
| 3 | safety helmet | construction industry in Europe | Mandatory safety equipment at construction sites | 1 |
| 4 | safety helmets | construction industry culture | Required safety equipment at construction sites to prevent head injuries | 1 |