Carrier profile · USDOT 312849 · Updated Jun 13, 2026

WALTHAM LUMBER CO

16 power unitsLocal · 1 statesWALTHAM, MA100/100

AUTHORITY STATUS UNKNOWNRATED CONDITIONAL

Observed fleet · trailing 24 mo daily

16Power units

4 observed · MCS-150

—Trailers seen

None observed · 24 mo

8.3Avg age (yr)

2016–2020 · vPIC

Call dispatch(781) 894-4430 Email dispatchwaltham@line.com

Click to see how we scored it

Load decision · FMCSA snapshot · Jun 13, 2026

Clear to load

Active authority and a clean federal record. No blocking issues found.

Established 38 years

Watch · 0

Nothing flagged.

In good standing · 1

Established 38 yearsOperating authority has been on file since 1988.

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo0.0%

Crashes · fatal

Clean · 24 mo

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo0.0%

Crashes · fatal

Clean · 24 mo

Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots

Fleet typeIdentity

Asset-based

16 power units. Brokers price each fleet type apart.

Fleet age vs peersDecoding

—

Not yet decoded

Identity stabilityStable

38 yr unchanged

Same registration since 1988 — no chameleon / reincarnation signal.

Safety

5 inspections · 24 mo

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

Vehicle OOS 0.0%24-mo cumulative

050%

Driver OOS 0.0%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 2 vehicle and 5 driver inspections over 24 months.

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

4 inspections in the charted months · busiest month Jan '25 · 1

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.

Thin coverage

Under-inspected

Expected

Well-monitored

Heavily inspected

≈0.2 / unit·yr

thin signalabundant signal

Few roadside inspections for a 16-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.

Registered power units: 16
Inspections · 24 mo: 5
Annualized: ≈3 / yr
Coverage: ≈0.2 inspections / unit · yr

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 Driving5 · 0 OOS
393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance2 · 0 OOS
393.9 Inoperative required lampsVehicle Maintenance1 · 0 OOS

Explore full safety record — inspections, BASICs, crashes

Authority & insurance

Can they legally + adequately haul your load?

Insurance continuity· insurer · policy · lapses

No insurance filing history on record.

This timeline is the FMCSA filing history, and it ends at the most recent superseded filing — current policy status is not tracked here. Request a certificate of insurance to confirm active coverage before tendering.

Explore full authority & insurance record

Equipment & fleet

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 16
Observed power (24 mo): 4
Trailers (towed): 0

Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.

Explore full fleet — VIN roster, equipment mix, age distribution

Operations & lanes

Revealed by inspection density across 1 states · 24 mo

Operating footprint· revealed by roadside-inspection geography

Operating radiusLocal

revealed

States observed

US states

Inspections · 24 mo

MA busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base

WALTHAM, MA

71 MASSASOIT ST

Top corridor

MA 5

Density

fewermore

Shade = roadside inspections, last 24 mo.

See the full operating map — state density, top lanes

Network & fraud

Affiliated entities & reincarnation signals · for review, not a verdict

Shares a registration email domain with other carriers

@line.com — 2 carriers: USDOT 2190276

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)

Observed (24 mo)

Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.

Explore the carrier network & VIN cross-links

Identity & contact

FMCSA census + L&I dossier

Location

Physical address: 71 MASSASOIT ST, WALTHAM, MA, 02454-0560
Mailing address: P O BOX 540560, WALTHAM, MA, 02154-0560
Operation: Interstate

Contact

Phone: (781) 894-4430
Fax: (781) 894-4430
Email: waltham@line.com
Web domain: line.com

Registration

Officers: Robert M Derderian · John Derderian
USDOT / docket: 312849
First registered: Apr 8, 1988
Last MCS-150: Jul 29, 2024 · 347,059 mi (2022)
FMCSA safety rating: Conditional · Jan 13, 1993
D-U-N-S: 19681451

Fleet (self-reported · MCS-150)

Power units

Drivers

CDL drivers

347,059

Annual mileage

Open the full identity & federal record

Federal activity

Daily-captured FMCSA licensing & insurance changes — monitored by Vektor

Federal record activity· monitored daily by Vektor

No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.

Open the full federal-record activity feed

Reviews

Verified broker, shipper & driver reviews — moderated

Performance ratings only — never the Vektor risk score

No verified reviews yet

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Verification summaryAuthority, insurance, safety and identity facts for WALTHAM LUMBER CO.

WALTHAM LUMBER CO (USDOT 312849) has a Vektor safety score of 100/100 and a Clear to load verdict, from the carrier's FMCSA record refreshed Jun 13, 2026.

The carrier has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of Jun 13, 2026.

It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Jun 13, 2026.

Its vehicle out-of-service rate was 0.0% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier received 5 roadside inspections in the last 24 months — 2 vehicle-level and 5 driver-level — across 1 state, according to FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier has 0 reportable crashes in the last 24 months and 1 fatal crash across the full FMCSA crash record available as of Jun 13, 2026.

It reports 16 power units and 16 drivers in its most recent MCS-150 filing dated Jul 29, 2024.

It has an FMCSA safety rating of Conditional assigned Jan 13, 1993 in the federal record refreshed Jun 13, 2026.

Frequently asked

What is WALTHAM LUMBER CO's USDOT number?

WALTHAM LUMBER CO's USDOT number is 312849.

Is WALTHAM LUMBER CO authorized to operate?

As of Jun 13, 2026, WALTHAM LUMBER CO is active in the FMCSA register.

What is WALTHAM LUMBER CO's safety record?

WALTHAM LUMBER CO has a 0.0% vehicle out-of-service rate (national average 22.26%) across 6 roadside inspections, with 0 reportable crashes in the last 24 months, and an FMCSA "Conditional" safety rating. Vektor's computed risk score is 100/100 (tier: clear).