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Carrier profile · USDOT 3244150 · Updated 06/13/2026

SLACK DEVELOPMENTS INC

DBA MONSTER TREE SERVICE OF PITTSBURGH

11 power unitsLocal · 1 statesPITTSBURGH, PA

AUTHORITY STATUS UNKNOWN

Observed fleet · trailing 24 mo daily

11Power units

2 observed · MCS-150

2Trailers seen

Decoded · vPIC

6.3Avg age (yr)

2019–2022 · vPIC

Call dispatch(412) 807-9817 Email dispatchmslack@whymonster.com

Carrier verification summary for SLACK DEVELOPMENTS INC

SLACK DEVELOPMENTS INC (USDOT 3244150) is unrated by Vektor because the deterministic FMCSA record does not contain enough evidence for a safety score as of 06/13/2026.

SLACK DEVELOPMENTS INC (USDOT 3244150) has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of 06/13/2026.

SLACK DEVELOPMENTS INC (USDOT 3244150) has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot row is available as of 06/13/2026.

SLACK DEVELOPMENTS INC (USDOT 3244150) has a 100.0% vehicle out-of-service rate over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed 06/13/2026.

SLACK DEVELOPMENTS INC (USDOT 3244150) has 0 reportable crashes in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of 06/13/2026.

SLACK DEVELOPMENTS INC (USDOT 3244150) reports 11 power units and 8 drivers in its most recent MCS-150 filing dated 10/16/2025.

SLACK DEVELOPMENTS INC (USDOT 3244150) has no FMCSA-assigned safety rating in the federal record refreshed 06/13/2026.

Click to see how we scored it

Load decision · FMCSA snapshot · 2026-06-13

Limited record

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

Established 7 yearsNot enough inspection history to rate

Watch · 1

Not enough inspection history to rate2 federal roadside inspections 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 7 yearsOperating authority has been on file since 2019.

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo

100.0

▲ 22.26% nat'l

Crashes · fatal

Clean · 24 mo

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo

100.0

▲ 22.26% nat'l

Crashes · fatal

Clean · 24 mo

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

Fleet typeIdentity

Asset-based

11 power units. Brokers price each fleet type apart.

Fleet age vs peersDecoding

—

Awaiting VIN decode

Identity stabilityStable

7 yr unchanged

Same registration since 2019 — no chameleon / reincarnation signal.

Safety

2 inspections · 24 mo · vs national benchmarks

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 100.0%24-mo cumulative

050%nat'l 22.26%

Driver OOS 0.0%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 2 vehicle and 2 driver inspections over 24 months.

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 11-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: 11
Inspections · 24 mo: 2
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.

393.9 Inoperative required lampsVehicle Maintenance5
393.43 Parts & accessories (vehicle condition)Vehicle Maintenance2 · 2 OOS
392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving2
393.75 Tires (defective / underinflated / worn)Vehicle Maintenance1
392.16 Failure to use seat beltUnsafe Driving1
396.3 Inspection / repair / maintenance not performedVehicle Maintenance1 · 1 OOS
393.205 Parts & accessories (vehicle condition)Vehicle Maintenance1
393.48 Brakes inoperativeVehicle Maintenance1

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): 11
Observed power (24 mo): 2
Trailers (towed): 2

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

PITTSBURGH, PA

112 MCCONNELLS MILL LN

Top corridor

PA 2

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

@whymonster.com — 101 carriers: USDOT 1343573 USDOT 2421418 USDOT 2463449 USDOT 2476932 USDOT 2482044 USDOT 2494741 USDOT 2884982 USDOT 3100714

Shares a company officer with other carriers

michael slack — 3 carriers: USDOT 1481803 USDOT 1791836

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: 112 MCCONNELLS MILL LN, PITTSBURGH, PA, 15228
Operation: Intrastate (Non-Hazmat)

Contact

Phone: (412) 807-9817
Email: mslack@whymonster.com
Web domain: whymonster.com

Registration

Officer: Michael Slack
USDOT / docket: 3244150
First registered: 02/11/2019
Last MCS-150: 10/16/2025 · 90,000 mi (2024)
FMCSA safety rating: Not rated
D-U-N-S: —

Fleet (self-reported · MCS-150)

Power units

Drivers

—CDL drivers

90,000

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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Frequently asked

What is SLACK DEVELOPMENTS INC's USDOT number?

SLACK DEVELOPMENTS INC's USDOT number is 3244150.

Is SLACK DEVELOPMENTS INC authorized to operate?

As of 2026-06-13, SLACK DEVELOPMENTS INC is active in the FMCSA register.

What is SLACK DEVELOPMENTS INC's safety record?

SLACK DEVELOPMENTS INC has a 100.0% 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: 2 federal roadside inspections 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.