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Carrier profile · USDOT 332560 · FMCSA data fetched 2026-10-27

DUFF SUPPLY CO INC

DBA DUFF COMPANY

5 power units6 driversInterstateNORRISTOWN, PA

Census status Active (A)
Official links FMCSA SAFER
Official record overview · fetched 2026-10-27 11:02 UTC

Below are official FMCSA record counts; the trial reference score is listed separately. No ranking or load verdict.

Registration · MCS-150

5

power units reported

Drivers reported
6
Status code
A · Active
MCS-150 filed
2024-08-12
Authority · raw codes

—

authority types listed Active (source value)

Docket
none listed
Rows matched
—
Status changes on file
—
Insurance filings

—

filing rows on record

Latest effective
—
Insurer
—
Prior policies
—
Inspections

—

SMS summary

SMS summary total
—
Driver OOS (SMS)
—
Vehicle OOS (SMS)
—

Loading authority, insurance and inspection sources… “—” means not loaded yet, not zero.

Loading this official source… values are not shown until it answers (not zero).

Trial reference score: waiting for the official authority and inspection sources — no score is shown until they answer.

01

Safety

Loading this official source… values are not shown until it answers (not zero).

Also on FMCSA:SAFER FMCSA SMS (BASICs)

Roadside inspections

Loading this official source… values are not shown until it answers (not zero).

Reported crashes

Loading this official source… values are not shown until it answers (not zero).

02

Authority & Insurance

Operating authority by docket

Loading this official source… values are not shown until it answers (not zero).

Authority status history

Loading this official source… values are not shown until it answers (not zero).

Status and reason text are shown exactly as FMCSA publishes them. The change date is FMCSA's status_change_date; “Dataset updated” is when FMCSA last published the file, and “Fetched” is when VAX read it. The two authority files are shown side by side and are not reconciled by VAX. Amounts: the dictionary says “thousands”, but published values look like dollars, so raw values are shown. Census status is not authority.

Insurance filings

Loading this official source… values are not shown until it answers (not zero).

Filings as recorded by FMCSA — not a certificate of insurance or proof of current coverage. Amounts are source values (dictionary: thousands).

03

Equipment

Source: FMCSA Company Census (az4n-8mr2) · raw queryDataset updated not reportedFetched 2026-10-27 11:02 UTC

Power units

5

Truck units

5

Bus units

0

EquipmentOwnedTerm leasedTrip leased
Straight trucks—5—
Truck tractors———
Trailers———
Ownership mix by equipment type
Straight trucksIncomplete source fields — no share computed—
Truck tractorsIncomplete source fields — no share computed—
TrailersIncomplete source fields — no share computed—
  • Owned
  • Term leased
  • Trip leased

Tractors and trailers are drawn separately and never merged into power units. A row with any empty field shows no share.

MCS-150 self-reported counts. “—” means the source field is empty, not zero.

Loading this official source… values are not shown until it answers (not zero).

04

Operations

Source: FMCSA Company Census (az4n-8mr2) · raw queryDataset updated not reportedFetched 2026-10-27 11:02 UTC

Carrier operation

Interstate (A)

Classification: PRIVATE PROPERTY

MCS-150 mileage

220,000 mi

Reported year 2024

Cargo classifications checked
  • Building materials
  • Utilities
  • Construction
  • Water well
  • Other: PLUMBING SUPPLIES
Interstate drivers >100 mi / ≤100 mi
4 / 2
Intrastate drivers >100 mi / ≤100 mi
0 / 0
Hazmat indicator (hm_ind)
Y
Registered address
201 E LAFAYETTE ST, NORRISTOWN, PA, 19401, US

Lanes and service areas are not published by FMCSA. The registered address is not an operating map, and inspection states are observations only — not live routes or a service area.

05

Identity & Federal

Source: FMCSA Company Census (az4n-8mr2) · raw queryDataset updated not reportedFetched 2026-10-27 11:02 UTC

Legal name
DUFF SUPPLY CO INC
DBA
DUFF COMPANY
USDOT
332560
MC / FF / MX
Not provided
Physical address
201 E LAFAYETTE ST, NORRISTOWN, PA, 19401, US
Mailing address
PO BOX 618, NORRISTOWN, PA, 19404, US
Business type
PARTNERSHIP
Carrier/shipper code
C;S
Census add date
1988-11-18
MCS-150 filing date
2024-08-12
Power units / drivers
5 / 6
Latest review (type · date)
C · 2006-04-19
06

Federal activity

  1. 2024-08-12Census

    Latest MCS-150 filing

  2. 2006-04-21Census

    Official safety rating: S

  3. 2006-04-19Census

    Compliance review recorded (C)

  4. 1988-11-18Census

    Added to FMCSA registration

Built only from dates in the sources above. Authority changes use FMCSA's own change date (yu5v-wbh6).

Changes observed by VAX monitoring

Loading…

07

FAQ

+What is DUFF SUPPLY CO INC's USDOT number?

USDOT 332560; no MC/FF/MX docket is listed in the census record.

+Is DUFF SUPPLY CO INC active?

The census registration status code is A. This is a registration code only — it is not operating authority, insurance coverage or a safety certification.

+How many trucks and drivers does DUFF SUPPLY CO INC report?

5 power units and 6 drivers, self-reported on the MCS-150 filed 2024-08-12.

+Does DUFF SUPPLY CO INC have insurance on file?

The insurance source did not respond for this page load.

+Where is DUFF SUPPLY CO INC located?

Registered physical address: 201 E LAFAYETTE ST, NORRISTOWN, PA, 19401, US. This is a registration address, not an operating area.

Answers are generated from the records on this page.

08

Nearby carriers

Loading this official source… values are not shown until it answers (not zero).

—

Sources

Each section shows its own fetch time; official data may have changed since. Official records plus an explainable trial record reference score (beta, not an official rating; no total when data is insufficient). No ranking, risk labels or load recommendations. Listing does not imply partnership, endorsement or platform access.