will 172.600C put my truck out of service?
No. Our inspection records show that 172.600C citations result in an out-of-service order only 0.4% of the time—just 1 placement out of 273 all-time citations. This is far below the all-FMCSR average OOS rate of 31.4%, meaning inspectors treat this as a documentation or process violation, not an immediate safety shutdown. Your truck will almost certainly be allowed to continue.