The Federal Motor Carrier Safety Administration (FMCSA) has issued a temporary exemption that allows Volvo Trucks to place a sensor on its windshields at a height lower than what is currently allowed by the regulation.
“The agency has determined that the placement of the rain- and ambient-light-detection sensor in the windshield area would not have an adverse impact on safety and that the terms and conditions of the exemption would achieve a level of safety equivalent to or greater than the level of safety provided by the regulation,” according to Federal Register documents.
In order for the sensor to function correctly, Volvo officials said the sensor must be installed in the wiper swept area of the windshield. This is due to the fact that an un-swept portion of the windshield could make it difficult for the sensor to determine if the wipers are needed or not.
This exemption went into effect December 21, 2015 and ends on December 20, 2017.
In March 2015, FMCSA granted a similar exemption to Volvo/Prevost for lane-departure warning system sensors.
To learn more about the exemption, click here.