Acute vs Critical Violations in a Safety Rating

Where the lists live

Owners are told to open Appendix A, and Appendix A is the right first page for the definitions. It is the wrong page if you stop there. Appendix A, section III, says acute regulations are those where noncompliance is so severe as to require immediate corrective actions regardless of the carrier's overall controls. It says critical regulations are those where noncompliance relates to management or operational controls and is indicative of breakdowns in those controls. The next sentence sends you to the list: Appendix B, section VII.

Appendix A is titled as the explanation of safety audit evaluation criteria. Appendix B is titled as the explanation of the safety rating process. The same words, acute and critical, appear in both, and the scoring is not the same. A blog that uses the words as synonyms, or that puts the 10 percent sentence under Appendix A, is mixing two documents. Quote the sentence from the appendix that actually contains it.

This page will not paste section VII. The list is long, it is amended, and a thin reprint goes stale. Use the current eCFR appendix when you need to know whether a particular section is marked acute or critical. Use this page to know which test applies once you have found the mark.

Acute means the instance is the event

Appendix B paragraph (g) assesses one point for each instance of noncompliance with an acute regulation during the compliance review. There is no percentage in that half of the sentence. If the regulation is marked acute, the investigator is not asking whether 10 percent of the files failed. The investigator is asking whether the instance occurred.

Appendix A uses a harsher audit score for the same word: 1.5 points for each instance of noncompliance with an acute regulation. That 1.5 is the safety-audit factor math, not the rating math. Three or more points in one of factors 1 through 5 means the audit finds inadequate basic safety management controls for that factor. Do not carry the 1.5 into a rating argument, and do not carry the rating's one-point rule back into the new-entrant audit and call it the same worksheet.

The appendix's own examples of acute regulations include requiring or permitting a driver who is disqualified to operate a commercial motor vehicle, and failing to implement an alcohol or controlled-substances testing program. Those are examples of the kind of rule the appendix marks acute. They are not a homemade top five, and they are not the whole list. If your review cited a different section, look that section up in section VII before you decide which test applies.

Critical means a pattern, and the pattern has a sentence

Appendix B (g) continues: one point for each pattern of noncompliance with a critical regulation. Then the definition, which should be quoted rather than paraphrased into a blog synonym. A pattern is more than one violation. When a number of documents are reviewed, the number of violations required to meet a pattern is equal to at least 10 percent of those examined.

Read both clauses. More than one violation is the floor. The 10 percent applies when the investigator is reviewing a number of documents. If the investigator examined 40 records, at least 10 percent of 40 is four. Two violations in those 40 are more than one, and they are also under 10 percent, so they are not the pattern the sentence describes. If the investigator examined 10 records, at least 10 percent is one, but a pattern is still more than one violation. The "more than one" clause does not disappear just because 10 percent of a small stack is a single record.

Paragraph (h) is the exception inside the critical column. Each pattern of noncompliance with a critical regulation relative to Part 395, hours of service, is assessed two points. A critical log pattern is not a one-point pattern. An acute violation is still scored as an instance, not as this two-point pattern.

Appendix A does not use that pattern sentence for the audit. It assesses one point for each instance of noncompliance with a critical regulation. A new-entrant audit can cite critical violations one by one. A compliance review that is building a safety rating uses the pattern test for critical rules. Tell those worksheets apart before you argue the score.

How the points become a rating word

The points are not the rating. Appendix B explains how acute instances and critical patterns are assessed and how the factors are then rated. The factor ratings are what become Satisfactory, Conditional, or Unsatisfactory. The point bands that turn a stack of points into a factor rating live in that appendix. This page will not reprint a band from memory. Open the current appendix when the investigator's worksheet is in front of you.

What each rating word does after it is issued is a different article. FMCSA safety ratings covers the operating consequences. The carrier safety ratings guide covers the three words. A Conditional rating is not the same clock as an Unsatisfactory rating. Do not borrow the 46-day and 61-day unsatisfactory clocks and paste them onto a critical-violation discussion.

A rating review looks at the regulations in the appendix and at the factor method in Appendix B. It is not a meeting about your percentile rank. An acute violation can exist in a fleet whose SMS numbers look quiet, because the review found the instance in the files. A high percentile can exist with no acute violation on the books, because roadside inspection data and a compliance-review finding are different inputs.

Examples owners actually hit, without pretending the list ends

Two acute examples are enough to show the test, and then the reader should go to the appendix. Using a driver who is disqualified is the kind of event the appendix marks acute: the instance is the violation, not a percentage of driver files that happened to be clean. Failing to have the required drug-and-alcohol program is the same shape. You either implemented the program or you did not. A stack of negative test results does not create the program that was never adopted.

Critical examples are the ones that feel like paperwork until the percentage is counted. A critical maintenance or hours rule is not proved by one bad file if the investigator reviewed a stack and the bad files are under 10 percent. It is proved, for rating points, when the pattern sentence is met. Hours-of-service critical patterns then take two points. Owners who treat every citation as acute will overstate the rating. Owners who treat every citation as "only paperwork" will understate an acute instance that needed no pattern at all.

If the citation in your report is not one of those two examples, do not force it into them. Section VII marks each regulation. The mark controls. A consultant's shorter list does not.

What a rating review looks at that SMS does not

SMS prioritizes. It compares you to peers in a safety-event group and, at the intervention thresholds in the methodology, it can produce a warning letter or an investigation. It does not assign Satisfactory, Conditional, or Unsatisfactory. Those words come from a compliance review or from the other rating paths FMCSA actually uses, scored under Appendix B.

The new-entrant safety audit uses Appendix A and, separately, the automatic-fail list in 385.321. Several acute regulations overlap that list. Overlap is not identity. A single occurrence of an automatic-fail item fails the new-entrant audit even when a rating worksheet would have asked for a pattern. Do not walk into a new-entrant audit arguing the 10 percent sentence against an item the audit table scores as a single occurrence. Do not walk into a compliance review arguing that you already "passed the new-entrant audit" so the rating appendix no longer applies.

Bring that margin note to the review. Arguing the wrong test wastes the only meeting where the factor points are still being explained.

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