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VALIDATED

Z & K LLC

Trust Score

Excellent Why this score?

Company CheckZ & K LLC · DOT 3768814

DBA: BIG BOYS TOWING

6 STITCHBERRY CT, REISTERSTOWN, MD, 21136-3215

DOT# 3768814 Reisterstown, Maryland

MOTOR CARRIER

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65,232

Power Units

220

Drivers

0

Crashes (24-Month)

None on file

Insurance

Not Rated

Safety Rating

0

Inspections

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Deep records on this carrier, only on LoadWrap

SMS BASIC Scores→ Safety & Inspections→ Licensing & Insurance→ Know Your Rights→ VIN Watch & CARB Check→ Get Change Alerts→

Public record

1 events tracked · latest Sep 19, 2026 ↓ Show details ↓

Insurance 1

Current
No active insurance on file.

Public FMCSA record · blue clean · orange change · red risk.

Driver Reviews (41 from industry sources)

TheTruckersReport 41 reviews

View Reviews →

Company Information

Legal NameZ & K LLC

DBA NameBIG BOYS TOWING

DOT Number3768814

Entity TypeMotor Carrier

Operating StatusA - Active

LocationReisterstown, Maryland

Added11/19/2021

MCS-15011/20/2021

Contact Details

PhoneSign in to view

EmailSign in to view

Physical Address6 STITCHBERRY CT, REISTERSTOWN, MD, 21136-3215

Mailing Address6 STITCHBERRY CT, REISTERSTOWN, MD, 21136-3215

Other Companies at This Address

Address6 STITCHBERRY CT, REISTERSTOWN, MD 21136-3215

1

Others here

2

Distinct phones

1

Active

Company	DOT	Phone	Status
Z & K LLC this company	3768814	Sign in	Active
BIG BOYS TOWING LLC	3992020	Sign in	Inactive

Note: sharing an address is legal and common (registered agents, virtual offices, business centers). A shared address never reduces the Trust Score.

Operating Authorities

Authority TypeOTHER;AUTHORIZED FOR HIRE

Carrier OperationC - Intrastate (Non-Hazmat)

CommonNot Active

ContractNot Active

BrokerNot Active

Cargo Transported

General FreightMotor VehiclesMachinery, Large ObjectsChemicalsPaper Products

Operation Classification

Authorized For Hire

SMS BASIC Scores

FMCSA safety categories, last 24 months. Above Cutoff = FMCSA flags a problem · Below cutoff = within limits · Clean = no violations.

Unsafe Driving

measure 0 · 0 insp with violations

Clean

Hours-of-Service Compliance

measure 0 · 0 insp with violations

Clean

Driver Fitness

measure 0 · 0 insp with violations

Clean

Controlled Substances / Alcohol

measure 0 · 0 insp with violations

Clean

Vehicle Maintenance

measure 0 · 0 insp with violations

Clean

Source: FMCSA SMS, updated monthly.

Drivers

220

Interstate

0

Intrastate

0

CDL

220

Total

Interstate >100mi0

Interstate <100mi0

Intrastate >100mi0

Intrastate <100mi0

Safety Summary

Safety RatingNot Rated

Total Crashes (24-mo)0

Fatal0

Driver OOS0.0% avg 5.5%

Vehicle OOS0.0% avg 20.7%

SmartWay PartnerNo

Insurance

AmountNone on file

VerifiedFMCSA · 06/16/2026

Last checked09/19/2026

Quick Facts

StatusActive

TypeMotor Carrier

Fleet65,232 units

Drivers220

MCS-15011/2021

Safety & Inspection Data

Crash Summary

Total Crashes (24-mo)0

Fatal0

Injury0

Tow-Away0

Driver Inspections

Total0

Out of Service0

OOS Rate0.0%

National Avg5.5%

Vehicle Inspections

Total0

Out of Service0

OOS Rate0.0%

National Avg20.7%

Licensing & Insurance

No insurance history records.

No active insurance policies.

No authority history.

No revocation records.

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87/100

Excellent

VERIFIED

Every carrier starts at 100. We subtract points for each missing requirement or risk factor below. Verified means all four core requirements pass.

Score breakdown, from 100 to 87

87

−10

Starts at 100−13 totalFinal 87

MCS-150 update overdue−10

Operating history unknown−3

Verification, 4 core requirements

Active operating authority

FMCSA shows the USDOT registration and authority are active.

Operating authority N/A

Not required for private carriers, a private carrier hauls its own goods and needs no for-hire operating authority (no MC number) under FMCSA.

Insurance on file with FMCSA N/A

Not required for private carriers, a non-hazmat private carrier hauling its own goods is generally not required to file proof of insurance with FMCSA.

Safety rating not Unsatisfactory

No Unsatisfactory rating on file.

What's lowering this score

-10

MCS-150 update overdue

The required biennial MCS-150 update has not been filed on time (score factor, not a verification failure).

-3

Operating history unknown

No authority grant date on file.

How we calculate the Trust Score

Every company starts at 100

We subtract points for each missing requirement or risk factor. Verified means all the core requirements for that company's type pass. Nothing is added back, the score is a deduction model built only on public FMCSA data. No pay-to-play, no opinions.

Requirements differ by company type

Each company is judged fairly on its own FMCSA obligations. Anything that doesn't apply shows as a grey N/A, not required, never a penalty.

Carrier (for-hire)

Operating authority, authorized-for-hire, insurance on file, safety rating.

Broker

Broker authority + $75k surety bond (BMC-84/85). MCS-150 not required (no fleet).

Freight forwarder

FF authority + $75k bond + BOC-3. MCS-150 not required (no trucks).

Private carrier

Active USDOT + MCS-150 + safety. No operating authority / for-hire / insurance filing required (hauls its own goods).

Crashes are scaled, not flat

Crash history is proportional. We don't apply a flat penalty, we scale it to (a) crashes per vehicle in the fleet and (b) the share of those crashes that were fatal. So a big, safe fleet barely moves; a small fleet with many (and fatal) crashes takes a large hit.

0 pts deductedscaled by rate & severityup to −28 pts

Low end

50,000 vehicles + 1 crash → ~0 pts. A huge fleet with very few crashes per vehicle is almost untouched.

High end

5 vehicles + 3 crashes incl. fatal → large deduction (near the −28 cap). Many crashes per truck, fatal-heavy.

Mechanics: deduction is capped at 28 points, weighted roughly 60% on crashes-per-vehicle and 40% on the fatal ratio. Zero crashes = zero deduction. If fleet size is unknown, only crash severity can move the score (conservative).

Out-of-service rate vs. the national average

Driver and vehicle out-of-service rates are measured against the FMCSA national average, not a flat number. A company only takes the deduction when it sits above the national benchmark, for example “Vehicle OOS 37% vs national avg 20.7%”.

Point reference, the full menu

Every factor and exactly how many points it can remove. Knockout factors (they also fail Verification) are marked.

Factor	Points
USDOT / authority not active with FMCSA knockout	−25
Missing operating authority (when required) knockout	−15
No insurance or surety bond on file (when required) knockout	−25
Unsatisfactory safety rating knockout	−30
Conditional safety rating	−12
MCS-150 biennial update overdue (carriers)	−10
Crashes, rate-adjusted (per-vehicle & fatal share)	0 to −28
Driver OOS rate above national average	−5
Vehicle OOS rate above national average	−5
Very new carrier (under 1 year)	−10
Limited operating history (1-3 years)	−6
Moderate operating history (3-5 years)	−3
Operating history unknown	−3
No public phone number	−3
No public email address	−2

All inputs come from public FMCSA records (operating authority, insurance/bond filings, the SAFER/SMS safety profile, crash & inspection reports). If FMCSA updates a record, the score updates with it. For the full deduction table, see the methodology page.

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