Personnel hearing can be permanently
damaged if exposed to constant high noise
levels of 85 dB. (A) or greater. Wear ap-
proved hearing protection devices when
working in high noise level areas. Person-
nel exposed to high noise levels shall
participate in a hearing conservation pro-
gram in accordance with DA PAM 40-501.
Hearing loss occurs gradually but becomes
permanent over time.
SINGLE HEARING PROTECTION REQUIRED
Wear hearing protection during engine and/or APU
operations; also when operating the vehicle up to a
speed of 20 mph. Single hearing protection includes
earplugs, earmuffs, attenuating Combat Vehicle Crew-
man (CVC) helmet, or headset. Failure to wear hearing
protection can result in hearing damage.
Wear hearing protection when firing the M2 machine
DOUBLE HEARING PROTECTION REQUIRED
Wear double hearing protection when operating the
vehicle over a speed of 20 mph. Double hearing protec-
tion consists of wearing earplugs or earmuffs with either
an attenuating CVC helmet or headset. Failure to wear
hearing protection can result in hearing damage.