172.519B1-HMPMC HM (Placarding) - Except as provided in 172.332, each placard must be as described in this subpart, and except for size and color, the printing, inner border and symbol must be as shown in 172.521 through 172.560 of this subpart, as appropriate
177.834A-HMC HM (Cargo) - Operating a motor vehicle with HM not blocked/braced/secured as required. NOTE: Any shifting likely to adversely affect HM/DG package integrity, under conditions normally incident to transportation
(OOS)