Will 177.804(a) put my truck out of service?
No, not in most cases. Across our inspection records, the out-of-service rate for 177.804(a) is 1.0%—only 1 truck was placed OOS out of 96 total citations ever recorded. This is far below the all-FMCSR average of 31.4%, making it one of the lowest-risk hazmat violations. You'll almost certainly be cited and issued a warning, but your truck will stay in service.