Will 177.840 put my truck out of service?
Yes—there's a 71.8% chance you'll be placed out of service if cited for this violation. Across our inspection records, 28 out of 39 all-time citations for 177.840 resulted in an immediate OOS order. This is significantly higher than the average FMCSR code, which has a 31.4% OOS rate. When an inspector finds that your hazmat vehicle lacks required emergency response information, the violation is treated as an immediate safety risk.