Accepting or Transporting Hazardous Materials not prepared in accordance with regulations
Hazardous Materials Compliance2Non-OOS· SMS Appendix A v3.20
177.801 is a HM Other violation under 49 CFR §177.801. It falls in the Hazardous Materials Compliance BASIC with a severity weight of 2/10. Nationally it was cited 1,947 times in the last five years, with an OOS rate of 24.1%.
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National roadside inspection stats
as of 6/20/2026
Inspections
1,477
that found this code
Violations
1,947
total written
OOS rate
24.1%
470 OOS
Source: FMCSA roadside inspection data (last 5 years). The OOS rate is the share of these violations that led the officer to mark the driver or vehicle out of service.
Violation group
HM Other
Regulation §
177.801
Severity weight
2
Used in SMS
Yes
Status
Active
Updated
6/20/2026
Last updated June 2026
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177.801 is the FMCSA roadside-inspection violation code for "Accepting or Transporting Hazardous Materials not prepared in accordance with regulations", part of the HM Other group, cited under 49 CFR §177.801.
What BASIC does 177.801 affect?
177.801 falls under the Hazardous Materials Compliance BASIC in the FMCSA Safety Measurement System (SMS).
What is the CSA severity weight of 177.801?
177.801 carries a severity weight of 2 out of 10. Higher weights indicate violations more closely tied to crash risk, and they count more toward a carrier's Hazardous Materials Compliance score.
Is 177.801 an out-of-service (OOS) violation?
No. 177.801 is not an out-of-service violation, so on its own it does not trigger an out-of-service order at the roadside.
How many CSA points does 177.801 add to a carrier's score?
The point contribution of 177.801 depends on its severity weight (2/10) multiplied by a time weight of 3, 2, or 1 based on how recent the inspection is. You can calculate the exact contribution with the CSA points calculator.
Can 177.801 be challenged through DataQs?
Yes. If you believe 177.801 was recorded in error, you can file a Request for Data Review (RDR) through the FMCSA DataQs system with supporting evidence. A successful challenge can remove or correct the violation on your record.