Why ticket the driver

No driver shall operate a commercial motor vehicle, and a motor carrier shall not require or permit a driver to operate a commercial motor vehicle, while the driver's ability or alertness is so impaired, or so """""likely to become impaired, through fatigue"""", illness, or any other cause, as to make it unsafe for him/her to """"begin or continue""" to operate the commercial motor vehicle. I put some quotes in there for what I thought were the spirit of the regulation. Anyway a defroster is important.

 

§393.79 Windshield defrosting and defogging systems.

(a) Vehicles manufactured on or after December 25, 1968. Each bus, truck, and truck-tractor

manufactured on or after December 25, 1968, must have a windshield defrosting and defogging

system that meets the requirements of FMVSS No. 103 in effect on the date of manufacture.

 

Just about the defroster.Could be a dozen reasons why the blower quits. No drivers in the shop.

 

No driver shall operate a commercial motor vehicle, and a motor carrier shall not require or permit a driver to operate a commercial motor vehicle, while the driver's ability or alertness is so impaired, or so """""likely to become impaired, through fatigue"""", illness, or any other cause, as to make it unsafe for him/her to """"begin or continue""" to operate the commercial motor vehicle.

 

I believe a/c is required to be operational to make the defroster work. On the Kenwoth I drive if you turn on the defroster the A/C compressor comes on automatically. The intent is to defrost with cool air

 

Yes I'll bet your right. Because when it is rainining hot and humid and the windows are up,that is what you do.You turn on the defroster with cool air.