Brake Safety Week is August 23–29, 2026. CVSA-certified inspectors across all 50 states and Canada will spend seven days conducting Level IV brake-focused inspections plus Level I and Level V inspections on vehicles without recent CVSA decals. In 2025, 15.1% of all inspected vehicles were placed out of service due to brake violations. That's 1 in 7 trucks taken off the road. The violations that caused them aren't random: the same categories top the list every single year. This guide gives you the exact checklist to clear every one of them and shows you how to manage pre-event maintenance for your entire fleet without a spreadsheet. Book a free FleetRabbit demo to see brake PM scheduling automated →
Top Brake Violations That Put Trucks Out of Service
These are the specific conditions CVSA inspectors actively look for. Every item below has triggered real OOS violations in recent enforcement campaigns. Knowing this list is the first step to ensuring none of your vehicles carry these conditions into August.
The #1 most cited brake violation every year. An out-of-adjustment brake is measured using a stroke gauge — if the pushrod stroke exceeds the adjustment limit for that chamber type, it's an automatic OOS condition. Even slightly over-adjusted brakes can trigger a violation on their own or contribute to the 20% defective brake threshold.
The focus area for 2024 Brake Safety Week — and a recurring top violation. Inspectors look for loose, missing, or worn lining and pads; cracks or voids; and contamination from grease, oil, or brake fluid. In 2024, inspectors found 654 lining/pad violations across tractor and trailer units. Contaminated linings fail even if thickness appears acceptable.
Brake hose chafing violations have been a recurring CVSA focus area across multiple campaigns. Chafed hoses that expose wiring or have visible air leaks are immediate OOS. In 2025 Brake Safety Day, inspectors found 77 stand-alone OOS violations related to brake hoses and tubing. Kinked, abraded, or cracked hoses are also violation candidates even without active leaking.
Cracked drums and rotors were the CVSA focus area for the 2025 Brake Safety Week. Brake drum and rotor issues reduce braking efficiency and can result in broken pieces becoming dislodged during operation — a direct safety risk to other road users. Wear beyond the minimum thickness specification is an automatic OOS regardless of visible cracking.
In 2025 Brake Safety Day, 38 vehicles failed the air loss rate test and were placed OOS. The test is straightforward: with brakes applied at 90 psi, air pressure loss must not exceed 4 psi/minute for single vehicles or 6 psi/minute for combinations. Failed air loss rate = immediate OOS regardless of other brake condition.
Steering axle brake violations are separately tracked and consistently cited. In 2024, 217 vehicles (10.1% of all OOS units) had steering axle brake OOS violations. Inoperative or missing steering axle brakes constitute a critical safety condition — the front axle brakes provide a disproportionate share of total stopping power on loaded Class 8 trucks.
The Brake Safety Week Prep Checklist — Vehicle by Vehicle
Work through this checklist for every vehicle in your fleet at least 3–4 weeks before August 23. That window gives you time to order and install parts, schedule shop time, and obtain a CVSA decal from a Level I or V inspection before enforcement week begins. Book a demo to see how FleetRabbit schedules this checklist automatically →
Get Every Vehicle Inspection-Ready Before BSW Starts
FleetRabbit automates brake inspection alerts, lining measurement remindersand pre-trip DVIR with brake-specific checklist items — all configurable per vehicle type. See how it works for your fleet in a live 30-minute session.
Your Best Insurance: Get a CVSA Decal Before August 23
A CVSA decal is issued when a vehicle passes a Level I or Level V North American Standard Inspection. The decal signals to roadside inspectors that your vehicle has recently passed a full inspection — making it significantly less likely to be selected for re-inspection during Brake Safety Week. Decals are valid for up to three consecutive months.
Schedule a Level I or Level V inspection with a CVSA-certified inspector before August 23. Level I is the full roadside inspection (vehicle + driver). Level V is vehicle-only. Both can issue a CVSA decal if no OOS violations are found.
CVSA decals are valid for up to 3 consecutive months from the date of inspection. A decal obtained in late July covers you through late October — well past the August 23–29 enforcement window.
A CVSA decal reduces — but does not eliminate — inspection risk during BSW. Inspectors can still pull any vehicle if they observe a clear safety defect, if the vehicle has recent violations, or if their jurisdiction protocol requires it.
Frequently Asked Questions
During Brake Safety Week, CVSA-certified inspectors primarily conduct Level IV inspections (special inspections focused specifically on brake components) on commercial motor vehicles. In addition, vehicles without a current CVSA decal may receive Level I (full vehicle + driver) or Level V (vehicle only) inspections. The brake inspection covers all equipped brakes: adjustment (pushrod stroke), friction materials (linings, pads, drums, rotors), air systems (hoses, tubing, chambers, pressure tests), and mechanical components (S-cams, slack adjusters, chambers). Each year, CVSA selects a specific focus area for additional data collection — in 2024 it was lining/pads; in 2025 it was drums/rotors. The focus area doesn't replace the full inspection but means inspectors pay extra attention and report additional data on that component type.
Under CVSA's North American Standard Out-of-Service Criteria, if 20% or more of a vehicle's (or combination vehicle's) brakes are in an out-of-service condition, the entire vehicle or combination is placed out of service and cannot move until violations are corrected. For example, a 5-axle tractor-trailer combination has 10 brake positions. If 2 or more of those positions have OOS-level violations (severely worn lining, out-of-adjustment beyond limits, cracked drum), the entire combination is placed OOS. This 20% threshold was met by 59.5% of all vehicles placed OOS during the 2025 Brake Safety Day — meaning most OOS orders were triggered by this rule, not by a single catastrophic failure.
When a vehicle is placed out of service, it cannot move under its own power until all OOS violations have been corrected and a re-inspection has been completed to confirm the repairs. This means: the driver cannot continue the route; the vehicle must be repaired on-site or towed to a repair facility (not driven); and a return inspection must clear the vehicle before it can proceed. The carrier or driver is also responsible for costs — emergency roadside repairs typically run 3–5× shop rates. Additionally, the OOS violation is recorded against your CSA (Compliance, Safety, Accountability) score in the FMCSA's SMS system, which can affect your safety rating, insurance rates, and shipper relationships. OOS violations from Brake Safety Week stay on your CSA record for 24 months.
No — Brake Safety Week applies to all commercial motor vehicles, including those equipped with hydraulic (non-air) brake systems. Buses, straight trucks, and lighter CMVs with hydraulic brakes are subject to inspection under the same CVSA North American Standard Inspection Program. The inspection criteria differ for hydraulic systems: inspectors check for fluid leaks, proper pedal feel and travel, functioning brake lights, and lining/pad condition. The Performance-Based Brake Tester (PBBT) inspections that measure braking efficiency (the 43.5% minimum) can also be applied to hydraulic-braked vehicles in jurisdictions that have that equipment. The checklists and violation categories differ from air brakes, but the enforcement activity applies equally to all commercial vehicle types.
FleetRabbit helps in four specific ways: (1) PM scheduling — automated brake lining measurement reminders, adjustment check intervals, and brake hose inspection triggers set to the intervals in this guide, firing work orders automatically before they're due rather than after a violation; (2) digital DVIR — pre-trip inspection forms that include all brake-specific checks from this checklist, submitted from the driver's mobile app and logged automatically with GPS verification; (3) maintenance history — complete documented service records for every brake component on every vehicle, retrievable in seconds during an inspection or audit; (4) upcoming PM dashboard — see which vehicles have brake services coming due in the next 30 days so you can prioritise shop time before August 23. The free tier covers 3 vehicles with all these features; paid plans start at $3/vehicle/month.
Yes — the unannounced Brake Safety Day uses the same CVSA North American Standard Out-of-Service Criteria as the announced Brake Safety Week. The key difference is that Brake Safety Day can be held at any point during the year without advance notice, and the OOS rate tends to be slightly lower (8.7% in 2025 vs 15.1% during BSW) — likely because carriers prepare specifically for BSW when the date is known, while Brake Safety Day catches vehicles in their normal operating state. The message from the data: brake maintenance should be continuous year-round, not a pre-BSW sprint. Vehicles with properly maintained brakes perform well in both announced and unannounced inspections regardless of timing.
Don't Let Brake Safety Week Find Your Fleet's Problems First
15.1% of inspected vehicles were placed OOS in 2025. The violations that caused it — out-of-adjustment brakes, worn linings, chafed hoses — are all preventable with the right PM schedule. FleetRabbit automates every interval in this checklist for your entire fleet.
No contracts · No hardware · 3 vehicles free forever · All vehicle brake types supported
