Carrier profile · USDOT 2707187 · Updated Aug 20, 2026

Main Line Engineering Construction Inc

7 power unitsavg 14.7 yrLocal · 1 statesLOMPOC, CA88/100

AUTHORITY STATUS UNKNOWN

Observed fleet · trailing 24 mo daily

7Power units

3 observed · MCS-150

—Trailers seen

None observed · 24 mo

14.7Avg age (yr)

2006–2015 · vPIC

Call dispatch(805) 588-5223 Email dispatchoffice@mainlinecorp.com

Click to see how we scored it

Load decision · FMCSA snapshot · Aug 20, 2026

Clear to load

Clear under the current scoring — review the flagged signal below before loading.

Watch · 1

Driver out-of-service rate well above average28.6% of driver inspections were placed out of service vs the 6.7% national average.

In good standing · 1

Established 11 yearsOperating authority has been on file since 2015.

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo14.3%

▼ 22.26% nat'l

Crashes · fatal

Clean · 24 mo

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo14.3%

▼ 22.26% nat'l

Crashes · fatal

Clean · 24 mo

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

Fleet typeIdentity

Small fleet

7 power units. Brokers price each fleet type apart.

Fleet age vs peersOlder

14.7 yr

Model years 2006–2015 · peer benchmark unavailable.

Identity stabilityStable

11 yr unchanged

Same registration since 2015 — no chameleon / reincarnation signal.

Safety

7 inspections · 24 mo · vs national benchmarks

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

Vehicle OOS 14.3%24-mo cumulative

050%nat'l 22.26%

Driver OOS 28.6%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 7 vehicle and 7 driver inspections over 24 months.

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

14.3% · latest 6-mo window▼ Falling

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending down 10.7 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

6 inspections in the charted months · busiest month Sep '25 · 2

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

≈0.5 / unit·yr

thin signalabundant signal

Roadside-inspection volume is about what you'd expect for a 7-unit fleet — enough signal to read the safety record, though not a heavy sample.

Registered power units: 7
Inspections · 24 mo: 7
Annualized: ≈4 / yr
Coverage: ≈0.5 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 Driving10 · 0 OOS
390.21 USDOT number marking on vehicleUnsafe Driving2 · 0 OOS
383.23 Operating without a valid CDLDriver Fitness2 · 2 OOS
393.75 Tires (defective / underinflated / worn)Vehicle Maintenance2 · 1 OOS
393.9 Inoperative required lampsVehicle Maintenance1 · 0 OOS
393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance1 · 0 OOS
396.3 Inspection / repair / maintenance not performedVehicle Maintenance1 · 1 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

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 7
Observed power (24 mo): 3
Trailers (towed): 0

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

Fleet age· model years · decoded VINs

14.7 yr

Average age

2015

Newest model yr

2006

Oldest model yr

33.3%

VINs decoded

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

CA busiest

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

Home base

LOMPOC, CA

228 AMHERST PLACE

Top corridor

CA 7

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 company officer with other carriers

antonio arroyo — 4 carriers: USDOT 804842 USDOT 2791647 USDOT 3860015

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 & Federal

FMCSA census + L&I dossier

Location

Physical address: 228 AMHERST PLACE, LOMPOC, CA, 93436
Mailing address: PO BOX 2209, LOMPOC, CA, 93438
Operation: Intrastate (Non-Hazmat)

Contact

Phone: (805) 588-5223
Email: office@mainlinecorp.com
Web domain: mainlinecorp.com

Registration

Officers: Ariel Arroyo · Antonio Arroyo
USDOT / docket: 2707187
First registered: Jun 12, 2015
Last MCS-150: Mar 26, 2026 · 65,000 mi (2024)
FMCSA safety rating: Not rated
D-U-N-S: —

Fleet (self-reported · MCS-150)

Power units

Drivers

—CDL drivers

65,000

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 MAIN LINE ENGINEERING CONSTRUCTION INC.

MAIN LINE ENGINEERING CONSTRUCTION INC (USDOT 2707187) has a Vektor safety score of 88/100 and a Clear to load verdict, from the carrier's FMCSA record refreshed Aug 20, 2026.

The carrier has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of Aug 20, 2026.

It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Aug 20, 2026.

Its vehicle out-of-service rate was 14.3% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Aug 20, 2026.

The carrier received 7 roadside inspections in the last 24 months — 7 vehicle-level and 7 driver-level — across 1 state, according to FMCSA roadside-inspection data refreshed Aug 20, 2026.

The carrier has 0 reportable crashes in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of Aug 20, 2026.

It reports 7 power units and 10 drivers in its most recent MCS-150 filing dated Mar 26, 2026.

It has no FMCSA-assigned safety rating in the federal record refreshed Aug 20, 2026.

Frequently asked

What is MAIN LINE ENGINEERING CONSTRUCTION INC's USDOT number?

MAIN LINE ENGINEERING CONSTRUCTION INC's USDOT number is 2707187.

Is MAIN LINE ENGINEERING CONSTRUCTION INC authorized to operate?

As of Aug 20, 2026, MAIN LINE ENGINEERING CONSTRUCTION INC is active in the FMCSA register.

What is MAIN LINE ENGINEERING CONSTRUCTION INC's safety record?

MAIN LINE ENGINEERING CONSTRUCTION INC has a 14.3% vehicle out-of-service rate (national average 22.26%) across 7 roadside inspections, with 0 reportable crashes in the last 24 months, and is not currently rated by FMCSA. Vektor's computed risk score is 88/100 (tier: clear).

How big is MAIN LINE ENGINEERING CONSTRUCTION INC's fleet?

MAIN LINE ENGINEERING CONSTRUCTION INC operates 7 power units and 10 drivers per its most recent MCS-150 filing.

Where is MAIN LINE ENGINEERING CONSTRUCTION INC based?

MAIN LINE ENGINEERING CONSTRUCTION INC is based in LOMPOC, CA, with roadside inspections recorded across 1 state.

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