In any emergency, call 3131.

If you are indoors and you hear:

Steady Alarm

Fire

Evacuate according to plan.

Assemble at designated assembly point.

Intermittent Alarm

Tornado

Go to shelter, according to plan.

Whooper Horn.

Radiation or hazardous atmosphere

Evacuate immediately, according to plan.

If you are outdoors and you hear:

Steady Siren*

Tornado

Go to shelter, according to plan.

If you donít have time to reach a designated shelter, seek shelter from a tornado in the nearest ditch or natural depression in the ground.

*Fermilab tests the Tornado siren at 10:00 a.m. on the first Tuesday of every month.