will 374.201(a) put my truck out of service
Not likely, but it's possible. Across our 13 million inspection records, 374.201(a) citations result in an out-of-service placement 25.0% of the time. That's lower than the all-FMCSR average of 31.4%, meaning this violation is somewhat less severe than typical roadside findings. Of the 4 all-time citations in our database, 1 truck was placed out of service and 3 were not.