It's really about the danger and the risk, Chair.
We can provide you with tier 1, tier 2 and tier 3 responsibilities.
Tier 1 is obviously the most risky and dangerous, where people are actually firefighting.
Tier 3 has more supportive functions around firefighting. That could be clearing wood or all sorts of things that are the consequences of fires.
It's a tiered system, where tier 1 firefighters are under the most risk and danger from fires.