2 IN/ 2 OUT 201.04

Question 1

OSHA states that “once fire fighters begin the interior attack on an interior structural fire, the atmosphere is
assumed to be IDLH and paragraph __ CFR _________ applies.”

Answer 1

29 CFR 1910.134(g)(4) [two-in/two-out]

Question 2

The objective of 2 in / 2 out is to have fully equipped firefighters in position during the initial fire attack to react in the event of a ?

Answer 2

Mayday situation

Question 3

The 2 standard Exceptions to the 2 in / 2 out Requirement at Structure Fires are ?

Answer 3

1. When there is a reported or suspected life hazard where immediate action could prevent the loss of life.
2. When the fire is in an incipient stage as defined above.

Question 4

OSHA further defines an incipient stage fire in 29 CFR 1910.155(c)(26) as a “fire which is in the initial or beginning stage and which can be controlled or extinguished by portable fire extinguishers, Class II standpipe or small hose systems without the need for what 2 things?

Answer 4

protective clothing or breathing

apparatus.”