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VALIDATED

CAROLYN S BOSWELL

Trust Score

Excellent Why this score?

Company CheckCAROLYN S BOSWELL · DOT 2165897

DBA: CSB

12230 440TH ST, DERBY, IA, 50068

DOT# 2165897 MC# 752517 Derby, Iowa 15 years

MOTOR CARRIER

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1

Power Units

1

Drivers

0

Crashes (24-Month)

Not reported

Insurance

Not Rated

Safety Rating

0

Inspections

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

Company Information

Legal NameCAROLYN S BOSWELL

DBA NameCSB

DOT Number2165897

MC Number752517

Entity TypeMotor Carrier

Operating StatusA - Active

LocationDerby, Iowa

Added06/21/2011

MCS-15007/03/2023

Contact Details

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EmailSign in to view

Physical Address12230 440TH ST, DERBY, IA, 50068

Mailing Address12230 440TH ST, DERBY, IA, 50068

Operating Authorities

Authority TypeAUTHORIZED FOR HIRE

Carrier OperationC - Intrastate (Non-Hazmat)

DocketMC752517

CommonNot Active

ContractInactive

BrokerNot Active

Operating15 years

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

1

Interstate

0

Intrastate

0

CDL

1

Total

Interstate >100mi0

Interstate <100mi0

Intrastate >100mi0

Intrastate <100mi0

Quick Facts

StatusActive

TypeMotor Carrier

Fleet1 units

Drivers1

Operating15 years

MCS-15007/2023

Licensing & Insurance

Form	Type	Insurance Company	Policy	Coverage	Effective	Cancel Date	Method
91X	BIPD/Primary	NORTHLAND INSURANCE COMPANY	WN080736	$750,000	10/07/2011	04/05/2013	Cancelled
91X	BIPD/Primary	NATIONAL CASUALTY COMPANY	LTO0029687	$750,000	08/30/2016	06/06/2017	Replaced
91X	BIPD/Primary	CLASSIC INSURANCE CO	CA 8089868	$1,000,000	06/22/2011	10/07/2011	Replaced
91X	BIPD/Primary	CLASSIC INSURANCE CO	CA 8089868	$1,000,000	06/22/2011	06/22/2011	Replaced
91X	BIPD/Primary	SENTRY SELECT INSURANCE COMPANY	A0173822001	$750,000	06/06/2021	11/25/2022	Cancelled
91X	BIPD/Primary	PROGRESSIVE NORTHERN INSURANCE COMPANY	CA 2148311	$750,000	06/06/2020	06/06/2021	Replaced
91X	BIPD/Primary	SCOTTSDALE INDEMNITY COMPANY	LTI0008161	$750,000	06/06/2017	06/06/2020	Replaced
91X	BIPD/Primary	SCOTTSDALE INDEMNITY COMPANY	LTI0008161	$750,000	06/06/2017	06/28/2020	Cancelled
91X	BIPD/Primary	NATIONAL CASUALTY COMPANY	LTO0019051	$750,000	06/06/2014	08/30/2016	Cancelled

No active insurance policies.

Docket	Type	Action	Served	Disposition	Disp Date
MC752517	MOTOR PROPERTY CONTRACT CARRIER	GRANTED	07/11/2011	REVOKED	04/15/2013
MC752517	MOTOR PROPERTY CONTRACT CARRIER	REINSTATED	06/09/2014	REVOKED	12/05/2022

No revocation records.

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90/100

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 90

90

−10

Starts at 100−10 totalFinal 90

MCS-150 update overdue−10

Verification, 4 core requirements

Active operating authority

FMCSA shows the USDOT registration and authority are active.

Authorized for hire

Holds active for-hire (common or contract) authority.

Active insurance on file

Active for-hire authority on file, FMCSA requires insurance to keep it active.

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).

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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