Which statement correctly identifies a notifiable construction project criterion?

• A. More than 30 working days
• B. More than 20 workers
• C. More than 500 person days
• D. All of the above

Answer: (A)

Notifiable construction projects are identified by two possible pathways under the regulations. A project becomes notifiable if it lasts more than 30 working days and, at any point, more than 20 workers are on site simultaneously. Alternatively, if the total amount of construction work reaches more than 500 person-days, the project is notifiable regardless of the exact on-site workforce at any moment. This means duration by itself isn’t enough; the workforce threshold must also be met for the first route. It also means that reaching 500 person-days is a separate route to notification. The statements in the question each relate to parts of these rules, but a single criterion on its own does not fully identify a notifiable project. The key takeaway is to apply either of the two routes: either duration over 30 days with more than 20 workers on site, or total work exceeding 500 person-days.