Inspection & Violation Trends Analysis

Analysis

· as of July 1, 2026

The most notable pattern in this dataset is the divergence between vehicle and driver out-of-service rates. Vehicle OOS rates have oscillated narrowly between roughly 13% and 16% for the entire period, ending near 16.0% in August 2025 before retreating to approximately 14–15% range in late 2025 and early 2026. Driver OOS rates, by contrast, were running at 4.62%–5.14% through the end of 2023, then began a sustained climb that carried them to 7.15% in August 2025 and held above 6.5% through February 2026. In January 2025 the driver OOS rate was 4.97%; by July 2025 it was 7.12%, a rise of more than 2 full percentage points in six months. That divergence suggests enforcement attention or violation composition shifted toward driver-related infractions rather than mechanical ones, though the data alone does not establish cause.

The overall violation rate tells a flatter story. It averaged 55.3% across the prior 12-month window and 56.5% across the trailing 12 months, a modest year-over-year increase that, in absolute terms, reflects substantially more violations simply because inspection volumes rose. Total inspections in the trailing 12 months were approximately 2.69 million versus 2.77 million in the prior period, a slight volume decrease, yet total violations over the trailing 12 months were 4.63 million, indicating the per-inspection violation burden increased. Monthly inspection counts have generally trended upward across the full dataset, from roughly 200,000–230,000 in late 2022 to a consistent range of 230,000–270,000 through mid-to-late 2025.

November 2025 stands out as an anomaly: inspections fell to 104,298, roughly half the surrounding months, which is likely an artifact of reporting lag or a data completeness issue rather than an operational change, and that month should be interpreted with caution.

The driver OOS pattern is consistent with increased enforcement focus on hours-of-service, licensing, or controlled substances and alcohol testing requirements, though no categorical breakdown is available here to confirm which violation types drove the increase. Across the full five-year window covering nearly 9.5 million inspections and over 15.3 million violations, the structural fact is that more than half of all inspected vehicles have carried at least one violation throughout the period, a baseline that has not meaningfully improved.