will 172.600 put my truck out of service
No. Across all roadside inspections in our database, 172.600 has resulted in zero out-of-service placements. The OOS rate for this violation is 0.0%, meaning inspectors have never impounded a vehicle specifically for missing emergency response information. That said, the code carries a CSA severity weight of 6, so the violation will still impact your safety profile even without immediate roadside removal.