Carrier profile · USDOT 933017 · Updated Jun 13, 2026

William a Day Jr & Sons Inc

18 power unitsavg 6.4 yrLocal · 2 statesPORTER, ME68/100
AUTHORITY STATUS UNKNOWNRATED SATISFACTORYHAZMAT
Verified linksdaylogging.comFMCSA SAFER

Safety

Roadside out-of-service rates versus the national benchmark, inspection and crash trends, decoded violation themes, and ELD / hours-of-service integrity — the full safety picture behind the verdict.

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 50.0%24-mo cumulative
050%nat'l 22.26%
Driver OOS 8.3%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 12 vehicle and 24 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

50.0% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 12.7 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

24 inspections in the charted months · busiest month Mar '25 · 4

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

Inspection coverage· expected vs observed · the fraud signal

Inspection coverage

How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.

Expected band
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.7 / unit·yr
thin signalabundant signal
Roadside-inspection volume is about what you'd expect for a 18-unit fleet — enough signal to read the safety record, though not a heavy sample.
Registered power units
18
Inspections · 24 mo
24
Annualized
≈12 / yr
Coverage
≈0.7 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

73%
Unsafe Driving
Vektor peer est.
20%
Hours-of-Service
Vektor peer est.
51%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
61%
Vehicle Maintenance
Vektor peer est.

Percentile = standing among same-exposure peers (higher = worse). FMCSA publishes percentiles for only some carriers (shown official); elsewhere we show a Vektor peer-percentile estimate, or the absolute SMS measure when there are too few inspections to rank.

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving42 · 0 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance8 · 8 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance7 · 3 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance5 · 0 OOS
  • 393.116 Parts & accessories (vehicle condition)Vehicle Maintenance4 · 4 OOS
  • 393.207 Parts & accessories (vehicle condition)Vehicle Maintenance4 · 4 OOS
  • 390.21 USDOT number marking on vehicleUnsafe Driving3 · 0 OOS
  • 391.41 No / expired medical certificateDriver Fitness3 · 2 OOS
  • 393.203 Parts & accessories (vehicle condition)Vehicle Maintenance3 · 0 OOS
  • 392.7 Driving of commercial motor vehiclesUnsafe Driving3 · 0 OOS

ELD & hours-of-service

1 hours-of-service / ELD violation on record · most recent Aug 9, 2024. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

0ELD device issues
1No log / no ELD
0False logs
0Drove over hours

Crash history· 19 total · 2 in 24 mo

19
Total crashes
2
In last 24 mo
2
Fatal
8
Injury
YearCrashesFatalInjuryTow
20261010
20251011
20241111
20231001
20222002
20211011
20201001
20192012
20183113
20163003
20151011
20041001
20031011
DateStateFatalitiesInjuriesTow-away
Mar 31, 2026ME01No
Aug 7, 2025ME01Yes
Jul 12, 2024NH12Yes
Jul 14, 2023ME00Yes
Nov 14, 2022NH00Yes
Apr 1, 2022ME00Yes
Mar 17, 2021ME02Yes
Jan 23, 2020ME00Yes
Sep 11, 2019ME01Yes
Feb 15, 2019NH00Yes
Nov 29, 2018ME01Yes
May 24, 2018ME00Yes
Apr 27, 2018ME10Yes
Dec 5, 2016ME00Yes
Apr 26, 2016NH00Yes
Mar 21, 2016NH00Yes
May 7, 2015ME02Yes
Apr 20, 2004ME00Yes
Dec 16, 2003NH02Yes