2 IN/2 OUT MP 201.04

Question 1

When does OSHA consider an atmosphere to be IDLH?

Answer 1

Once fire fighters begin an interior attack on a structure fire.

Question 2

What is the objective of 2 in/2 out?

Answer 2

To have fully equipped FF’s in place during the initial fire attack, in case of a Mayday.

Question 3

When will the 2 in/2 out rule be established?

Answer 3

Anytime FF’s are on air inside a structure and no other units have arrived on scene.

Question 4

When is the 2 in/2 out policy not in effect?

Answer 4

When initial engine company arives on scene and fire is in the incipient stage.

Question 5

How dos OSHA define an incipient stage fire?

Answer 5

A fire in beginning stage that, without the need for protective clothing or breathing apparatus, can be controlled/extinguished by:

• portable fire extinguisher
• Class 2 standpipe
• small hose system

Question 6

What is the purpose of the ISO System?

Answer 6

To assign responsibility for FF safety to an individual, and how its done.