Inspection & Violation Trends Analysis

Analysis

· as of October 1, 2026

The most notable pattern in this dataset is not the gradual rise in inspection volumes but the pronounced and sustained increase in driver out-of-service rates, which have diverged sharply from vehicle OOS rates over the past 18 months. While vehicle OOS rates have moved within a relatively narrow band, driver OOS rates climbed from 4.68% in April 2023 to 7.5% in July 2026, a rise of nearly 3 percentage points that has persisted across multiple months rather than appearing as a single spike. In September 2026, the driver OOS rate stood at 7.12%, compared to 4.86% in September 2023, marking a clear directional shift that holds across equivalent calendar months. Vehicle OOS rates over the same comparison period moved from 14.46% to 15.81%, a more modest change that does not follow the same trajectory. This divergence between driver and vehicle OOS trends is the defining compositional feature of the recent period and suggests enforcement attention or underlying compliance conditions affecting drivers specifically have shifted, though the data alone cannot establish which. The trailing 12-month average driver OOS rate of 7.0% against a prior-12-month average of roughly 4.8% underscores that this is not a short-term fluctuation. Violation rates have also drifted upward: the trailing-12-month average violation rate of 57.4% compares to 56.0% in the prior 12 months, with March 2026 at 58.48% and April 2026 reaching 59.39%, the highest reading in the series. Inspection volumes have grown as well, with 2,936,498 inspections recorded in the prior 12-month period and 2,689,106 in the trailing 12 months, though the trailing period reflects a partial month in the most recent observation. The pattern is consistent with a freight enforcement environment that has become progressively more active on driver compliance categories, possibly reflecting Hours of Service or licensing-related enforcement emphasis, though the violation-level breakdown required to confirm that is not present in this dataset. Placed in the context of the full five-year window spanning 11.3 million inspections, the current driver OOS rate represents a clear departure from the baseline that prevailed through most of 2022 and 2023.