Carrier profile · USDOT 450317 · Updated Jun 13, 2026

DAY & ZIMMERMANN NPS

4 power unitsLocal · 1 statesPHILADELPHIA, PA50/100

AUTHORITY STATUS UNKNOWN

Observed fleet · trailing 24 mo daily

4Power units

1 observed · MCS-150

—Trailers seen

None observed · 24 mo

7.0Avg age (yr)

2019–2019 · vPIC

Call dispatch(717) 391-3162 Email dispatchtammy.hersh@dayzim.com

Click to see how we scored it

Load decision · FMCSA snapshot · Jun 13, 2026

Limited record

Not enough federal record to assess. Verify authority and insurance directly.

Established 35 yearsNot enough inspection history to rate

Watch · 1

Not enough inspection history to rate1 federal roadside inspection in the last 24 months. FMCSA itself will not score a carrier's vehicle or driver record on fewer than 5, and neither will we — verify authority, insurance and references directly before tendering.

In good standing · 1

Established 35 yearsOperating authority has been on file since 1991.

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo0.0%

Crashes · fatal

Clean · 24 mo

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo0.0%

Crashes · fatal

Clean · 24 mo

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

Fleet typeIdentity

Small fleet

4 power units. Brokers price each fleet type apart.

Fleet age vs peersDecoding

—

Not yet decoded

Identity stabilityStable

35 yr unchanged

Same registration since 1991 — no chameleon / reincarnation signal.

Safety

1 inspections · 24 mo

Out-of-service rate· 24-mo cumulative

Vehicle OOS 0.0%24-mo cumulative

050%

Driver OOS 0.0%24-mo cumulative

030%

Every inspection in the window pooled — 1 vehicle and 1 driver inspections over 24 months.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

No roadside inspections on the FMCSA record in this window

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.

Thin coverage

Under-inspected

Expected

Well-monitored

Heavily inspected

≈0.1 / unit·yr

thin signalabundant signal

Few roadside inspections for a 4-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.

Registered power units: 4
Inspections · 24 mo: 1
Annualized: ≈1 / yr
Coverage: ≈0.1 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.

393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance2 · 0 OOS
390.21 USDOT number marking on vehicleUnsafe Driving1 · 0 OOS
395.8 Record of duty status (log / ELD) not current or missingHOS Compliance1 · 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 & fleet

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 4
Observed power (24 mo): 1
Trailers (towed): 0

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

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

PA busiest

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

Home base

PHILADELPHIA, PA

1500 SPRING GARDEN ST

Top corridor

PA 1

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 registration email domain with other carriers

@dayzim.com — 4 carriers: USDOT 1974312 USDOT 2333747 USDOT 3943534

Shares a company officer with other carriers

john mccormick — 16 carriers: USDOT 596328 USDOT 628278 USDOT 1344190 USDOT 1607987 USDOT 1641703 USDOT 1644037 USDOT 1974312 USDOT 1977920

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 & contact

FMCSA census + L&I dossier

Location

Physical address: 1500 SPRING GARDEN ST, PHILADELPHIA, PA, 19130
Operation: Interstate

Contact

Phone: (717) 391-3162
Cell: (717) 847-8797
Fax: (717) 481-5615
Email: tammy.hersh@dayzim.com
Web domain: dayzim.com

Registration

Officers: John Mccormick · Tammy Hersh
USDOT / docket: 450317
First registered: Jun 25, 1991
Last MCS-150: Jul 2, 2025 · 8,000 mi (2024)
FMCSA safety rating: Not rated
D-U-N-S: 7913486

Fleet (self-reported · MCS-150)

Power units

Drivers

CDL drivers

8,000

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

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Verification summaryAuthority, insurance, safety and identity facts for DAY & ZIMMERMANN NPS.

DAY & ZIMMERMANN NPS (USDOT 450317) is unrated by Vektor because the carrier's FMCSA record does not contain enough evidence for a safety score as of Jun 13, 2026.

The carrier has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of Jun 13, 2026.

It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Jun 13, 2026.

Its vehicle out-of-service rate was 0.0% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier received 1 roadside inspections in the last 24 months — 1 vehicle-level and 1 driver-level — across 1 state, according to FMCSA roadside-inspection data refreshed Jun 13, 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 Jun 13, 2026.

It reports 4 power units and 4 drivers in its most recent MCS-150 filing dated Jul 2, 2025.

It has no FMCSA-assigned safety rating in the federal record refreshed Jun 13, 2026.

Frequently asked

What is DAY & ZIMMERMANN NPS's USDOT number?

DAY & ZIMMERMANN NPS's USDOT number is 450317.

Is DAY & ZIMMERMANN NPS authorized to operate?

As of Jun 13, 2026, DAY & ZIMMERMANN NPS is active in the FMCSA register.

What is DAY & ZIMMERMANN NPS's safety record?

DAY & ZIMMERMANN NPS has a 0.0% vehicle out-of-service rate (national average 22.26%) across 3 roadside inspections, with 0 reportable crashes in the last 24 months, and is not currently rated by FMCSA. Vektor does not assign this carrier a safety score: 1 federal roadside inspection in the last 24 months. FMCSA itself will not score a carrier's vehicle or driver record on fewer than 5, and neither will we — verify authority, insurance and references directly before tendering.