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DENNIS DIEFENDERFER RODNEY DIEFENDERFER AND JOSEPH DIEFENDERFER

Trust Score

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Company CheckDENNIS DIEFENDERFER RODNEY DIEFENDERFER AND JOSEPH DIEFENDERFER · DOT 853580

DBA: JESSE DIEFENDERFER & SONS

415 DOE RUN ROAD, EAST FALLOWFIELD, PA, 19320

DOT# 853580 MC# 309441 East Fallowfield, Pennsylvania 29 years

CARRIER

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Power Units

Drivers

Crashes (24-Month)

$1,000,000

Insurance

Not Rated

Safety Rating

Inspections

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Public record

4 events tracked · latest May 30, 2026 ↓ Show details ↓

Safety & compliance 4

May 30, 2026
Roadside inspection, 1 out-of-service violation.
May 23, 2026
Roadside inspection, 1 violation (no OOS).
Apr 3, 2026
Clean roadside inspection, no violations.
Feb 24, 2026
Roadside inspection, 1 violation (no OOS).

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

Contact Details

Phone(610) 350-6750

Fax(610) 383-1088

Email[email protected]

Physical Address415 DOE RUN ROAD, EAST FALLOWFIELD, PA, 19320

Mailing AddressPO BOX 31, EAST FALLOWFIELD, PA, 19320

Other Companies at This Address

Address415 DOE RUN ROAD, EAST FALLOWFIELD, PA 19320

Others here

Distinct phones

Active

Company	DOT	Phone	Status
DENNIS DIEFENDERFER RODNEY DIEFENDERFER AND JOSEPH DIEFENDERFER this company	853580	(610) 350-6750	Active
JESS DIEFENDERFER & SONS LLC	2421588	(610) 416-1141	Active

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 TypeAUTHORIZED FOR HIRE

Carrier OperationA - Interstate

DocketMC309441

CommonActive

ContractActive

BrokerNot Active

Operating29 years

Company Overview

DENNIS DIEFENDERFER RODNEY DIEFENDERFER AND JOSEPH DIEFENDERFER is a FMCSA-validated carrier based in East Fallowfield, Pennsylvania. The company has been in operation for 29 years, registered with the FMCSA on 02/08/2000. The fleet consists of 4 power units and 4 drivers. Annual mileage is reported at 103,936 miles (2023). With zero crashes across 9 inspections, DENNIS DIEFENDERFER RODNEY DIEFENDERFER AND JOSEPH DIEFENDERFER maintains an excellent safety record. Driver and vehicle out-of-service rates exceed the national average, which may indicate compliance concerns. Insurance coverage of $1,000,000 is on file through GREAT WEST CASUALTY CO.. Active operating authorities include Common, Contract. Based on authority, insurance, safety, and compliance data, DENNIS DIEFENDERFER RODNEY DIEFENDERFER AND JOSEPH DIEFENDERFER has a Trust Score of 90/100 (Excellent).

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 13.51 · 2 insp with violations

Below cutoff

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 2 · 1 insp with violations

Below cutoff

Source: FMCSA SMS, updated monthly.

Mileage

Annual Mileage103,936 miles

Mileage Year2023

VMT SourceMCS-150 Form

Drivers

Interstate

Intrastate

CDL

Total

Interstate >100mi0

Interstate <100mi0

Intrastate >100mi0

Intrastate <100mi0

Equipment

No equipment breakdown on file with FMCSA.

HazMatNo

Safety Summary

Safety RatingNot Rated

Total Crashes (24-mo)0

Fatal0

Driver OOS14.3% avg 5.5%

Vehicle OOS50.0% avg 20.7%

Insurance

Amount$1,000,000

Type91X

Effective06/28/2021

CompanyGREAT WEST CASUALTY CO.

Policy #MCP72051A

Quick Facts

StatusActive

TypeCarrier

Fleet4 units

Drivers4

Mileage103,936 mi

Operating29 years

MCS-15012/2025

Safety & Inspection Data

Crash Summary

Total Crashes (24-mo)0

Fatal0

Injury0

Tow-Away0

Driver Inspections

Total7

Out of Service1

OOS Rate14.3%

National Avg5.5%

Above National Average

Vehicle Inspections

Total2

Out of Service1

OOS Rate50.0%

National Avg20.7%

Above National Average

Safety Trends by Year

Roadside inspections and crashes on file, year over year. The red portion of each inspection bar is the out-of-service share; ▲/▼ compares to the prior year.

Inspections · red = OOS

2023

1 · 0 OOS -

2024

1 · 1 OOS ▲

2025

2 · 0 OOS ▼

2026

4 · 1 OOS ▲

Crashes

No crashes on record.

Based on FMCSA crash and roadside inspection records (rolling 3-year window). The latest year may be partial.

Out-of-Service Summary Last 24 months

Live FMCSA roadside inspections through May 2026, 7 inspections, 2 resulted in out-of-service (28.6% OOS rate).

Driver Out-of-Service 1 OOS

Vehicle Out-of-Service 1 OOS

Live FMCSA roadside inspection records, refreshed monthly.

Roadside Violations by Safety Category Last 24 months

12 roadside violations across 7 inspections, grouped into FMCSA safety-behavior categories. The shaded portion shows how many were serious enough to result in an out-of-service order.

ViolationsOut-of-service

Unsafe Driving 9 violations · 0 OOS

Vehicle Maintenance 2 violations · 1 OOS

Hours-of-Service (HOS) Compliance 1 violation · 1 OOS

Categories follow FMCSR violation parts (Part 393/396 = Vehicle Maintenance, Part 395 = HOS; "Other" = general/administrative parts such as 390). Raw violation counts and out-of-service results, not FMCSA percentile rankings, which are not published for property carriers.

Inspection Records (8)

Date	State	Level	Location	Violations	OOS	Driver Viol	Driver OOS	Vehicle Viol	Vehicle OOS	HazMat
05/30/2026	WI	Driver-Only (Level III)	HUDSON WI	4	1	3	1	1	0	-	▲Detail
05/23/2026	GA	Driver-Only (Level III)	BRUNSWICK GA	1	0	1	0	0	0	-	▲Detail
04/03/2026	NJ	Walk-Around (Level II)	NJ	0	0	0	0	0	0	-	▲Detail
02/24/2026	DE	Driver-Only (Level III)	NEW CASTLE DE	1	0	1	0	0	0	-	▲Detail
12/15/2025	NJ	Driver-Only (Level III)	I-80 W/B	1	0	1	0	0	0	-	▲Detail
05/20/2025	FL	Driver-Only (Level III)	YULEE FL	0	0	0	0	0	0	-	▲Detail
09/21/2024	IL	Walk-Around (Level II)	I-294 SB	5	1	0	0	0	1	-	▲Detail
12/22/2023	MN	Driver-Only (Level III)	MAPLE GROVE	3	0	3	0	0	0	-	▲Detail

Safety Performance Percentiles

FMCSA SMS percentile rankings. Higher percentile = worse performance relative to peers.

Total Inspections5

Unsafe Driving 2 viols

Vehicle Maintenance 1 viols

Licensing & Insurance

Form	Type	Insurance Company	Policy	Coverage	Effective	Cancel Date	Method
34	CARGO	UTICA MUTUAL INSURANCE CO.	CIM1666720	$0	10/28/1996	06/28/1997	Replaced
91X	BIPD/Primary	UNITED FINANCIAL CASUALTY COMPANY	CA 0852804	$750,000	06/28/2019	06/28/2021	Replaced
91X	BIPD/Primary	NATIONAL CASUALTY COMPANY	LTO0023881	$750,000	06/28/2015	08/01/2019	Cancelled
91X	BIPD/Primary	NATIONAL CASUALTY COMPANY	LTO0023881	$750,000	06/28/2015	06/28/2019	Replaced
91X	BIPD/Primary	NATIONAL CASUALTY COMPANY	LTO0003742	$750,000	06/28/2011	06/28/2015	Cancelled
91X	BIPD/Primary	NORTHLAND INSURANCE COMPANY	TN504219	$750,000	06/28/2006	07/29/2011	Cancelled
91X	BIPD/Primary	NORTHLAND INSURANCE COMPANY	TN504219	$750,000	06/28/2006	06/28/2011	Replaced
34	CARGO	NORTHLAND INSURANCE COMPANY	TN504219	$0	06/28/2006	07/29/2011	Cancelled
34	CARGO	SENTRY SELECT INSURANCE COMPANY	CT773536-8005-051	$0	06/28/2005	06/28/2006	Replaced
91X	BIPD/Primary	SENTRY SELECT INSURANCE COMPANY	CT773536-8005-051	$750,000	06/28/2005	06/28/2006	Replaced
34	CARGO	NORTHLAND INSURANCE COMPANY	TN298156	$0	06/28/2000	04/03/2003	Cancelled
34	CARGO	FRONTIER INSURANCE COMPANY	LHT0000195	$0	06/28/2000	06/28/2000	Replaced
91X	BIPD/Primary	NORTHLAND INSURANCE COMPANY	TN298156	$1,000,000	06/28/2000	04/03/2003	Cancelled
91X	BIPD/Primary	FRONTIER INSURANCE COMPANY	LHT0000195	$1,000,000	06/28/1999	06/28/2000	Replaced
91X	BIPD/Primary	FRONTIER INSURANCE COMPANY	LHT0000195	$1,000,000	06/28/1999	03/08/2000	Transferred
34	CARGO	FRONTIER INSURANCE COMPANY	LHT0000195	$0	06/28/1999	03/08/2000	Transferred
34	CARGO	GREAT WEST CASUALTY CO.	CLP76720A	$0	06/28/1997	06/28/1999	Replaced
91X	BIPD/Primary	GREAT WEST CASUALTY CO.	CLP76720A	$750,000	06/28/1997	06/28/1999	Replaced
91X	BIPD/Primary	LINCOLN GENERAL INSURANCE COMPANY	PAP1867230696	$750,000	06/28/1996	06/28/1997	Cancelled
34	CARGO	NORTHLAND INSURANCE COMPANY	TN357301	$0	04/03/2003	07/29/2005	Cancelled
34	CARGO	NORTHLAND INSURANCE COMPANY	TN357301	$0	04/03/2003	06/28/2005	Replaced
91X	BIPD/Primary	NORTHLAND INSURANCE COMPANY	TN357301	$1,000,000	04/03/2003	07/29/2005	Cancelled
91X	BIPD/Primary	NORTHLAND INSURANCE COMPANY	TN357301	$1,000,000	04/03/2003	06/28/2005	Replaced

No active insurance policies.

Docket	Type	Action	Served	Disposition	Disp Date
MC309441	MOTOR PROPERTY COMMON CARRIER	GRANTED	12/23/1996	TRANSFERRED	02/10/2000
MC309441	MOTOR PROPERTY CONTRACT CARRIER	GRANTED	10/15/1996	TRANSFERRED	02/10/2000
MC309441	COMMON	INVOLUNTARY REVOCATION	06/01/2015	DISCONTINUED REVOCATION	06/26/2015
MC309441	CONTRACT	INVOLUNTARY REVOCATION	06/01/2015	DISCONTINUED REVOCATION	06/26/2015
MC309441	MOTOR PROPERTY COMMON CARRIER	REINSTATED	05/14/2001	-	-
MC309441	MOTOR PROPERTY COMMON CARRIER	GRANTED	02/10/2000	REVOKED	05/25/2000
MC309441	MOTOR PROPERTY CONTRACT CARRIER	GRANTED	02/10/2000	-	-

No revocation records.

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Trust Score over time and the complete authority and insurance timeline, not just today.

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

Starts at 100−10 totalFinal 90

Driver out-of-service rate above national average−5

Vehicle out-of-service rate above national average−5

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

Insurance coverage and carrier are on file with FMCSA.

Safety rating not Unsatisfactory

No Unsatisfactory rating on file.

What's lowering this score

-5

Driver out-of-service rate above national average

Driver OOS 14.2857% vs national avg 5.51%.

-5

Vehicle out-of-service rate above national average

Vehicle OOS 50% vs national avg 20.72%.

Where this company lands, risk scales

Driver out-of-service rate−5 of 5

0 pts · low risk−5 pts · high risk

Driver OOS 14.2857% vs national avg 5.51%.

Vehicle out-of-service rate−5 of 5

0 pts · low risk−5 pts · high risk

Vehicle OOS 50% vs national avg 20.72%.

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) knockout	−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.

DENNIS DIEFENDERFER RODNEY DIEFENDERFER AND JOSEPH DIEFENDERFER

Trust Score

Public record

Company Information

Contact Details

Other Companies at This Address

Operating Authorities

Company Overview

Operation Classification

SMS BASIC Scores

Mileage

Drivers

Equipment

Safety Summary

Insurance

Quick Facts

Safety & Inspection Data

Safety Trends by Year

Out-of-Service Summary Last 24 months

Roadside Violations by Safety Category Last 24 months

Inspection Records (8)

Safety Performance Percentiles

Licensing & Insurance

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