Will 399.211 put my truck out of service?
No. Across our 13 million inspection records, 399.211 has never resulted in an out-of-service placement—the OOS rate is 0.0%. This stands in stark contrast to the all-FMCSR average of 31.4%, which means inadequate driver access violations are treated as non-critical maintenance items. You can continue operating while you arrange repairs.