Violation code

172.315

HM (Markings) - No or improper Limited Quantity Mark.

Not in SMSNon-OOS· FMCSA A&I All Violations

172.315 is a HazMat violation under 49 CFR §172.315. It is not scored in the SMS. Nationally it was cited 15 times in the last five years, with an OOS rate of 0.0%.

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National roadside inspection stats

as of 6/20/2026

Inspections

that found this code

Violations

total written

OOS rate

0.0%

0 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.

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Not used in SMS BASIC scoring

Recorded on your inspection report and visible on the PSP, but contributes 0 points to CSA BASIC scores — even if cited Out-of-Service.

Violation group: HazMat
Regulation §: 172.315
Severity weight: N/A
Used in SMS: No
Status: Active
Updated: 6/20/2026

Last updated June 2026

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Challenging 172.315 through FMCSA DataQs

If this violation was written incorrectly, here are the angles trucking-safety managers use to contest it. Playbook: Hazardous Materials.

Common ways to challenge this code

Shipment was not placardable
The materials transported did not exceed the threshold quantities requiring placards under 49 CFR Part 172 Subpart F.
Evidence that wins
- ✓Shipping papers showing UN number, hazard class, and quantity
- ✓Manufacturer's product specification sheet
Administrative HazMat code (not in SMS)
This administrative code is on the inspection report but does not contribute to CSA BASIC scoring per FMCSA SMS Methodology Appendix A.
Evidence that wins
- ✓FMCSA SMS Methodology Appendix A reference

Common pitfalls — avoid these

⚠Administrative HazMat codes still appear on the PSP record even when not scored in SMS

⚡ Draft a challenge for 172.315 →Read the DataQs guide first

Other HazMat codes

Codes under the same FMCSA violation group

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Frequently asked questions about 172.315

What does violation 172.315 mean?

172.315 is the FMCSA roadside-inspection violation code for "HM (Markings) - No or improper Limited Quantity Mark.", part of the HazMat group, cited under 49 CFR §172.315.

What BASIC does 172.315 affect?

172.315 is not scored in any CSA BASIC. It is recorded on the inspection report and appears on the PSP, but it contributes 0 points to a carrier's SMS BASIC percentiles.

Is 172.315 an out-of-service (OOS) violation?

No. 172.315 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 172.315 add?

172.315 adds 0 CSA points because it is not used in SMS scoring, even when written out of service.

Can 172.315 be challenged through DataQs?

Yes. If you believe 172.315 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.

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