How many crashes has STATE MATERIAL MASON SUPPLY CORP been involved in?

FMCSA records show 1 reportable crash involving STATE MATERIAL MASON SUPPLY CORP in the past 5 years, including 1 fatal crash. These are state-reported crashes meeting the federal MCMIS reporting threshold (fatality, injury, or tow-away).

What is STATE MATERIAL MASON SUPPLY CORP's safety rating?

Their SafeNY Risk Score (SNRS) is 5.4 out of 10, placing them in the ELEVATED band. SNRS is a composite of crash, negligence, mechanical, driver, and stability factors computed from public FMCSA records. This is a decision-support score, not a legal safety rating.

Where is STATE MATERIAL MASON SUPPLY CORP based?

STATE MATERIAL MASON SUPPLY CORP is registered with FMCSA under USDOT 939746 and is domiciled in WESTBURY, NY. Domicile is the address on file with the Motor Carrier Census; operations may extend beyond this location.

How many trucks does STATE MATERIAL MASON SUPPLY CORP operate?

STATE MATERIAL MASON SUPPLY CORP reports operating 18 power units on its most recent MCS-150 filing (last updated 2024-08-19). Fleet sizes change between biennial filings; the active number may differ.

What insurance does STATE MATERIAL MASON SUPPLY CORP carry?

No active L&I (Licensing & Insurance) filing is on record in the FMCSA bulk feed. Federal-minimum interstate BIPD coverage is $750,000; intrastate-only carriers may carry state-specific minimums and are not required to file with FMCSA.

Pattern D · No Active BIPD Filing

State Material Mason Supply Corp

WESTBURY, NY · USDOT 939,746 · 18 power units · small fleet

NO ACTIVE FILING

49 CFR § 387 · No BIPD policy on file with FMCSA L&I

Possible causes (not assessed):

Operating without required interstate coverage.
Policy lapsed; renewal not yet filed.
Intrastate-only operation (federal filing not required).
Filing pending refresh in next L&I sync.

SafeNY Risk Score

5.4

ELEVATED

Primary risk factor: Crash

Confidence ●●○○ (2 of 4 data sources verified)

Source: FMCSA Motor Carrier Census + SMS + L&I + MCMIS Crash + Inspection Records, snapshot 2026-05-01 · Computed 2026-05-12 · Outdated

SNRS is a decision-support score for legal-case evaluation. Statistical estimate only — not legal advice and not evidence of liability. See methodology.

If you were involved in a crash with this carrier, the data below may help you understand whether your case warrants legal attention. The lead form at the bottom of this page can connect you to an attorney specialist for case-specific evaluation.

Insurance & coverage

No federal BIPD insurance filing exists on record for this carrier.

49 CFR § 387 requires interstate motor carriers to maintain active bodily injury & property damage (BIPD) coverage. The absence of a filing in the FMCSA L&I database may indicate:

Operation without required federal insurance coverage
Policy lapsed and not yet renewed
Carrier operates intrastate only (federal filing not required)
Filing is recent and pending database refresh

For attorney case evaluation: verifying current coverage status directly through FMCSA's L&I lookup is recommended before proceeding.

Source: FMCSA L&I filings (BMC-91 / BMC-91X / MCS-90) · Computed 2026-05-14 · Outdated

Crash record · 5-year window

Total crashes

Fatal

Injury

Last incident: 8 months ago

1 fatal crash on record; 1 total crashes over 5 years.

Night-driving crash pattern

Night-driving analysis: insufficient crash sample (N < 5).

Pattern detection requires at least 5 documented crashes in the past 5-year window.

Source: FMCSA MCMIS Crash File · Computed 2026-05-14 · Outdated

Risk decomposition

Driven primarily by C-factor (crash rate) at 6.8/10, above the small-cohort median of 4.2.

Method: how this carrier's SafeNY SNRS was computed(expand for carrier-specific walkthrough)

The five factors below come from State Material Mason Supply Corp's actual FMCSA records. Each factor is a 0–10 score; the composition produces a 0–10 SNRS smoothed against the prior month's value (α = 0.40). The Bayesian step below leaves exposure_M-PUD symbolic; the closed-form denominator and a worked example are on /methodology#shrinkage.

Step 1 — Bayesian-shrunk crash rate

This carrier has 1 documented crashes in the past 5 years (1 fatal). The cohort prior (mean fatal rate for similar-sized fleets) is 0.317 events per million power-unit-days; after Bayesian shrinkage with prior strength w₀ = 10, this carrier's adjusted rate is 0.395.

\hat{r}_{\text{shrunk}} \;=\; \frac{10 \cdot 0.317 \;+\; 1}{10 \;+\; \text{exposure}_{\text{M-PUD}}} \;=\; 0.395

Step 2 — Five-factor SNRS_raw composition (B-method)

SNRS_{raw} \;=\; 0.60 \cdot \max(C, N, M) \;+\; 0.30 \cdot \operatorname{median}(C, N, M, D) \;+\; 0.10 \cdot S

\quad\;=\; 0.60 \cdot \max(6.8, 2.4, 5.1) \;+\; 0.30 \cdot \operatorname{median}(6.8, 2.4, 5.1, 3.0) \;+\; 0.10 \cdot 0.6 \;=\; 5.4

C Crash 6.8 · N Negligence 2.4 · M Mechanical 5.1 · D Driver 3.0 · S Stability 0.6

Step 3 — EMA smoothing against last month's value

SNRS \;=\; \alpha \cdot SNRS_{raw} \;+\; (1-\alpha) \cdot SNRS_{\text{prev}}, \quad \alpha = 0.40

For State Material Mason Supply Corp: SNRS_raw = 5.4 → smoothed SNRS = 5.4. (Prior month's smoothed value is the EMA weight; the first month of data uses raw without smoothing.)

Educational Settlement Severity Estimate (Non-Advisory)

The SafeNY SSR estimates the likely verdict range for a hypothetical crash scenario involving this carrier. Adjust severity and jurisdiction.

Severity

Crash state

Case intake · initial review at no cost

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Carrier on file for this submission

USDOT 939746 · State Material Mason Supply Corp

Last sync 2026-05-01

About you

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The crash

Date of crash

State where the crash occurred

Severity

Minor injury / property damageSerious injury (hospitalization)Fatal

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0 / 500

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Submissions are timestamped, IP-logged, and reviewed by attorneys before any further action. Misrepresentations may be considered fraud under applicable state law.

SafeNY is not a law firm and does not provide legal advice. Submissions are forwarded to participating attorneys who independently determine case acceptance. No attorney-client relationship is formed by submission.

Cite this analysis

Four reference formats pre-filled for State Material Mason Supply Corp (USDOT 939746). For format guidance and worked examples, see /cite.

APA 7th edition(expand)

SafeNY. (2026). Safety analysis for State Material Mason Supply Corp (USDOT 939746). Retrieved [date], from https://safeny.com/trucking-accidents/state-material-mason-supply-corp-usdot-939746

Chicago (author-date)(expand)

SafeNY. 2026. "Safety analysis for State Material Mason Supply Corp (USDOT 939746)." Accessed [date]. https://safeny.com/trucking-accidents/state-material-mason-supply-corp-usdot-939746.

Bluebook (legal briefs)(expand)

SafeNY Safety Profile, State Material Mason Supply Corp, FMCSA USDOT 939746, SafeNY (last visited [date]), https://safeny.com/trucking-accidents/state-material-mason-supply-corp-usdot-939746.

BibTeX(expand)

@misc{safeny_state_939746_2026,
  title        = {Safety analysis for State Material Mason Supply Corp},
  author       = {{SafeNY}},
  year         = {2026},
  howpublished = {\url{https://safeny.com/trucking-accidents/state-material-mason-supply-corp-usdot-939746}},
  note         = {USDOT 939746; derived from FMCSA public records}
}

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Carrier response opportunity

If you are an authorized representative of STATE MATERIAL MASON SUPPLY CORP, you may submit a formal response to this analysis under SafeNY's Governance Protocol. Responses found to be factually grounded are published alongside this analysis.

Response form: /governance/respond
Email: intel@safeny.com

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