When should radiation meters be activated according to steady-state operation protocols?

In steady-state operation protocols, radiation meters should be activated when responding to a Level I Haz-Mat incident of a known nature. This is crucial because activating the meters at this point allows for the immediate assessment of any potential radiological hazards present in the environment. Understanding the type and level of radiation can guide the incident command in making informed decisions about safety measures, resource allocation, and response strategies.

Using radiation meters early, particularly in scenarios where the nature of the hazardous materials is known, ensures that the safety of personnel and civilians can be prioritized, and it aids in determining the necessary protective actions. The decision to activate these meters is based on the understanding that certain materials may present immediate danger due to their radioactive properties, which need to be monitored from the onset of the response.

The other options suggest activating meters in situations that may not provide the best opportunity for immediate risk assessment or may occur after safety protocols are already compromised. For example, waiting until hazardous materials are contained could lead to unnecessary exposure and delay in response strategies if radioactive materials are involved.