Inspection & Violation Trends Analysis

Analysis

· as of August 15, 2026

The most notable pattern in this dataset is not the gradual rise in inspection volumes but the persistent and accelerating increase in driver out-of-service rates, which have more than doubled from their mid-series lows. Driver OOS rate sat at 4.62% in December 2023, then climbed steadily to 7.5% in July 2026, a level not seen anywhere in the earlier portion of the series. By contrast, the vehicle OOS rate has moved in a narrower band, ranging from roughly 13.3% to 16.5% over the same period, suggesting that the driver-side enforcement environment has shifted more sharply than the mechanical compliance picture. In April 2026, the driver OOS rate reached 7.32% against a vehicle OOS rate of 16.51%, compared to April 2024's 4.99% driver OOS rate and 15.12% vehicle OOS rate -- a year-over-year divergence of more than 2.3 percentage points on the driver side versus roughly 1.4 percentage points on the vehicle side. The overall violation rate has also drifted upward. The trailing 12-month average violation rate is 57.3%, compared to 55.9% for the prior 12-month period, and monthly readings in early 2026 have pushed above 58% and 59% in a way that earlier periods in the series did not sustain. March 2026 recorded a 58.48% violation rate and April 2026 reached 59.39%, both among the highest monthly figures in the dataset. The rising driver OOS rate is consistent with increased enforcement focus on hours-of-service and driver qualification violations, though the data alone does not confirm which specific violation categories are driving the shift. Inspection volumes have also grown: July 2026's 255,764 inspections and August 2025's 253,772 are well above the 2022 and 2023 monthly counts that typically ranged between 195,000 and 250,000. The August 2026 figure of 77,727 inspections appears to reflect a partial month of reporting and should not be interpreted as a volume decline. Across the full five-year window of approximately 10.9 million inspections, the structural violation rate has remained above 53% in every single month, indicating a durable baseline compliance gap rather than a short-term fluctuation.