393.207F-SLAS — Suspension - Leaking 3 PSI in 5 minutes

FMCSA violation code under Vehicle Maintenance. 6,437 events recorded in roadside inspections. Severity weight: N/A.

Violation code 393.207F-SLAS is a Federal Motor Carrier Safety Regulations citation issued under 49 CFR 393.207. It tracks a specific compliance failure recorded against motor carriers and drivers during FMCSA roadside inspections. The code rolls up into the FMCSA Safety Measurement System (SMS) Vehicle Maintenance BASIC, which feeds the carrier's percentile ranking and prioritization for FMCSA interventions. It applies to interstate motor carriers, drivers, and the commercial motor vehicles they operate; intrastate operators are subject when their state has adopted Part 350 of the FMCSR by reference. 6,437 citations have been recorded against this code in the FMCSA inspection record.

Severity Weight
N/A
OOS Eligible
No
BASIC Category
Vehicle Maintenance
Total Events
6,437
Code:
393.207F-SLAS
Code System:
FMCSR
BASIC Category:
Vehicle Maintenance
OOS Eligible:
No
Severity Weight:
N/A
Total Events:
6,437
Carriers Cited:
4,315

Ranks #306 of 3,146 FMCSR codes by citation frequency • OOS rate of 0.4% is below the FMCSR-wide average of 33.2%.

Violation Description

Suspension - Leaking 3 PSI in 5 minutes

About This Violation Code

Code 393.207F-SLAS falls under the Vehicle Maintenance BASIC category in FMCSA's Safety Measurement System (SMS).

When this violation is cited during a roadside inspection, it contributes to the carrier's Vehicle Maintenance BASIC score. Carriers with high BASIC percentiles may be prioritized for FMCSA interventions including warning letters, investigations, or compliance reviews.

Regulatory Reference

Federal Motor Carrier Safety Regulations

This violation references 49 CFR 393.207F in the Federal Motor Carrier Safety Regulations.

Events (all time)
6,437
OOS Events
24
OOS Rate
0.4%
Top State (180d)
California
430 events

Top Enforcing States

Where 393.207F-SLAS is most commonly cited (last 180 days)

1. California
430
OOS 0.2%
2. US
247
OOS 0.0%
3. Washington
87
OOS 0.0%
4. Arizona
47
OOS 0.0%
5. Colorado
44
OOS 0.0%
6. South Dakota
40
OOS 0.0%
7. North Dakota
39
OOS 0.0%
8. South Carolina
35
OOS 0.0%
9. Tennessee
27
OOS 0.0%
10. Oklahoma
27
OOS 0.0%
11. Kentucky
25
OOS 0.0%
12. Ohio
21
OOS 0.0%
13. Missouri
19
OOS 0.0%
14. Minnesota
19
OOS 0.0%
15. Oregon
18
OOS 0.0%

Click a state to see roadside inspection activity, top stations, and carrier profiles in that jurisdiction.

Citation Trend (12 months)

Monthly count of 393.207F-SLAS citations. Red bars mark months with OOS-triggering citations.

202
2025-07
376
2025-08
345
2025-09
393
2025-10
278
2025-11
270
2025-12
267
2026-01
301
2026-02
335
2026-03
38
2026-04
207
2026-05
252
2026-06
50
2026-07

Most Active Stations

Inspection stations citing 393.207F-SLAS most often (last 180 days)

1. EL PASO TX
57
OOS 0.0%
2. DESERT HILLS IF
54
OOS 0.0%
3. BOW WA
31
OOS 0.0%
4. COTTONWOOD IF
22
OOS 0.0%
5. LAREDO TX
22
OOS 0.0%
6. RIDGEFIELD WA
20
OOS 0.0%
7. OTAY MESA IF
20
OOS 0.0%
8. GILROY IF
17
OOS 0.0%
9. EAGLE PASS TX
16
OOS 0.0%
10. PRESIDIO TX
16
OOS 0.0%

Often Cited Together

Other violations commonly found on the same inspection (last 90 days)

Citation patterns suggest related root causes (e.g., HOS violations paired with logbook errors).

Top Carriers Cited

Ranked by frequency • 4,315 carriers total • Page 3 of 173

Recent Inspections

Latest inspections where 393.207F-SLAS was cited • 6,437 total events • Page 1 of 258

Date Report # State Level OOS
88350323 KY Level 1 No
88349573 CA Level 2 No
88347439 CA Level 2 No
88343290 CT Level 1 No
88349909 CA Level 1 No
88347562 UT Level 1 No
88347144 US Level 1 No
88347098 US Level 1 No
88346956 US Level 1 No
88342949 CA Level 1 No
88342819 CA Level 1 No
88342411 CA Level 1 No
88339455 NE Level 2 No
88335643 OK Level 1 No
88343231 CA Level 1 No
88342232 CA Level 1 No
88342104 FL Level 2 No
88339212 CA Level 1 No
88335753 US Level 1 No
88332401 OR Level 1 No
88330181 CA Level 1 No
88330141 NE Level 1 No
88329528 US Level 1 No
88328596 CA Level 2 No
88332599 NM Level 2 No

How to comply with violation code 393.207F-SLAS

  1. Locate the regulation in the eCFR. Open https://www.ecfr.gov/current/title-49/section-393.207 on eCFR.gov to read the legal text the citation is written against. The eCFR is the National Archives' continuously updated electronic Code of Federal Regulations and is the canonical reference for any FMCSR section.
  2. Determine if your operation is subject. Confirm whether your operation is interstate (always subject to the FMCSR) or intrastate (subject when your state has adopted 49 CFR Part 350 by reference; most have). Intrastate operators in non-adopting states may be subject to a state analog instead of the federal rule.
  3. Identify the documented requirement. Read the requirement carefully: "Suspension - Leaking 3 PSI in 5 minutes" Map it to the specific equipment, driver document, or operational practice it covers.
  4. Inspect or maintain to standard. Build a recurring inspection, training, or filing routine that catches this gap before a roadside inspector does. Pre-trip checks, scheduled preventive maintenance, driver-qualification file audits, and supervisor reviews are the standard places this kind of issue is caught early.
  5. Document compliance to demonstrate it on review. Keep a dated, signed record of each inspection, repair, training session, or filing tied to 393.207F-SLAS. During an FMCSA compliance review or a customer onboarding audit, the documentation is what proves the program runs — undocumented compliance is indistinguishable from non-compliance to the auditor.

Frequently asked questions about 393.207F-SLAS

What is FMCSA violation code 393.207F-SLAS?
Suspension - Leaking 3 PSI in 5 minutes The citation appears as code 393.207F-SLAS on roadside inspection reports issued by the Federal Motor Carrier Safety Administration and rolls up into the Vehicle Maintenance BASIC.
Is 393.207F-SLAS an out-of-service violation?
No. Code 393.207F-SLAS is not Out-of-Service eligible. A citation under this code is recorded on the inspection report and counts toward the carrier's BASIC percentile, but it does not by itself trigger an Out-of-Service order at the roadside.
What's the severity weight of 393.207F-SLAS?
FMCSA hasn't published a severity weight for 393.207F-SLAS in the snapshot we mirror. Severity weights run from 1 to 10 on FMCSA's published violation table; codes without a weight are typically administrative or duplicative of weighted codes that already feed the BASIC percentile.
How many inspections have cited 393.207F-SLAS?
6,437 inspections in our FMCSA mirror cite 393.207F-SLAS, of which 24 (0.4%) resulted in Out-of-Service orders. The Recent Inspections table on this page lists the most recent citations with date, state, level, and OOS flag — click any row to see the full inspection report.
Which BASIC category is 393.207F-SLAS in?
393.207F-SLAS rolls up into the Vehicle Maintenance BASIC of FMCSA's Safety Measurement System. The BASIC determines how the citation feeds the carrier's percentile ranking — carriers with high percentiles in a BASIC are prioritized for FMCSA interventions including warning letters, focused investigations, and full compliance reviews.
What does a carrier do to fix 393.207F-SLAS?
Resolving a 393.207F-SLAS citation has two parts: (1) correct the underlying condition immediately — repair the equipment defect, retrain the driver, file the missing form, or update the maintenance record — and (2) document the correction in the carrier's compliance file, ideally with date, time, and the name of the person who performed the work. Carriers that believe the citation was recorded in error can file a Request for Data Review through the FMCSA DataQs system within 24 months of the inspection date.
Where can I find related violation codes?
The "Often Cited Together" panel on this page lists violations frequently appearing on the same inspection as 393.207F-SLAS — these usually share a root cause (for example, an HOS violation paired with a logbook error). The All Violation Codes index links to every code in the system, and the BASIC category page lists every code in Vehicle Maintenance.
Where can I find the full text of 393.207F-SLAS?
The full regulatory text is published on eCFR.gov at 49 CFR 393.207. The eCFR is the official, continuously updated electronic Code of Federal Regulations maintained by the National Archives. The TruckCodex page mirrors enforcement data; the eCFR has the legal text the citation is written against.

About FMCSA violation codes

Every violation found during an FMCSA roadside inspection is recorded under a code drawn from the Federal Motor Carrier Safety Regulations — the codified safety rules motor carriers, drivers, and commercial motor vehicles must comply with in interstate commerce. Codes roll up into one of seven Behavior Analysis and Safety Improvement Categories (BASICs): Unsafe Driving, Hours-of-Service, Driver Fitness, Controlled Substances/Alcohol, Vehicle Maintenance, Hazardous Materials Compliance, and Crash Indicator. Each code carries a published severity weight (1–10) and an Out-of-Service eligibility flag.

Citations counted in the FMCSA Safety Measurement System (SMS) feed a 24-month rolling percentile rank for every motor carrier. Recent citations weigh more heavily than older ones — FMCSA applies a 3× multiplier to events 0–6 months old, 2× for 6–12 months, and 1× for 12–24 months. Carriers above the published intervention threshold for a given BASIC are prioritized for warning letters, focused investigations, and full compliance reviews.

TruckCodex mirrors the FMCSA Motor Carrier Management Information System (MCMIS) and the published violation dictionary on a daily refresh cycle. We do not author or modify violation records — every count, severity weight, and OOS flag on this page reflects what the FMCSA has on file. For real-time confirmation immediately before an enforcement decision, click through to the FMCSA Violations Search link above. Carriers who believe a citation was recorded in error can file a Request for Data Review through the FMCSA DataQs system.

Data sources & freshness

TruckCodex aggregates official public-sector datasets. See the Source registry for dataset-level coverage and the Freshness log for last-import timestamps.

Census, SAFER, SMS, Licensing & Insurance (L&I), roadside inspections, crashes, and authority history.

Refreshed daily.

Vehicle recall campaigns, defect investigations, and consumer safety complaints (SCRS).

Refreshed daily.
EIA

Retail diesel and gasoline price history and state fuel-tax tables.

Refreshed weekly.

Cross-border carrier registry and Canadian recall campaigns where applicable.

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TruckCodex is an independent aggregator; it is not affiliated with FMCSA, NHTSA, EIA, or Transport Canada. Always verify compliance-critical information directly with the originating agency.