SPENCER TRUCKING LLC

DBA: STONE TRUCKING

DOT# 3279280 MC# 1036575

ACTIVE

Trust Score

90 / 100

A Excellent

Components

Compliance · 40% 100

Safety · 35% 100

Insurance · 25% 60

BIPD coverage below the $1000000 minimum for this carrier No active cargo insurance on file

Confidence: high · based on FMCSA safety, insurance & authority data How is this calculated?

Overview

Address

5330 N LA CHOLLA BLVD

TUCSON, AZ 85741

View on Google Maps ↗

Contact

Phone: (520) 219-0498

Email: mheberling@spencertrucks.com

Company Officers

PATRICK SPENCER

Business Info

D&B #: 0

HazMat: HazMat Carrier

Fleet

Power Units

Drivers

Equipment Breakdown

Owned Tractors11

Term Tractors37

Term Trailers49

Authority

Status: ACTIVE

FMCSA add date: Apr 26, 2019

Common authority: Mar 6, 2020

Authority History (3)

Authority Type	Action	Date
COMMON	INVOLUNTARY REVOCATION → DISCONTINUED REVOCATION	Nov 4, 2025 → Nov 3, 2025
COMMON	INVOLUNTARY REVOCATION → DISCONTINUED REVOCATION	Oct 14, 2022 → Nov 2, 2022
MOTOR PROPERTY COMMON CARRIER	GRANTED	Mar 6, 2020

Cargo Types

General FreightMotor VehiclesLogs/Poles/LumberMachinery/Large Objects

Active Certifications

PropertyPrivate

MCS-150

Last updated: Feb 3, 2026

Mileage: 426,646 (2025)

Operation Classification

PRIVATE PROPERTYAUTHORIZED FOR HIRE

Carrier Operation

Interstate

Recent Changes

Fleettotal drivers: 24 → 0Aug 18, 2026

Contactemail: → mheberling@spencertrucks.comAug 15, 2026

Identitycompany officer 1: → PATRICK SPENCERAug 15, 2026

Fleettotal drivers: 24 → 0Aug 14, 2026

Safetyvehicle oos rate: 25 → 18.75Aug 13, 2026

Safety

Out-of-Service Rates

Driver21 inspections

4.8%

6.2%

Carrier National avg

Vehicle18 inspections

22.2%

22.8%

Carrier National avg

Hazmat

No hazmat inspections

Overall21 inspections

23.8%

Carrier

Crash Summary

Fatal

Injury

Towaway

Total

BASIC Violations

Unsafe Driving3

Driver Fitness1

Hours of Service1

Drug / Alcohol0

Vehicle Maintenance14

Safety Measurement System (SMS)

FMCSA's official per-BASIC roadside-performance measures over the trailing 24 months, computed from the 14 inspections below. A measure of 0 means no recorded violations in that BASIC — not necessarily a strong safety record on a small sample. FMCSA does not publish peer-group percentiles for property carriers, so the underlying measures — not percentile rankings — are shown; Hazmat Compliance and Crash Indicator are not published.

SMS Inspections (24 mo)

Total

Driver OOS

Vehicle OOS

BASIC Measures

Unsafe Driving0.000 insp w/ viol

Hours of Service0.091 insp w/ viol

Driver Fitness0.601 insp w/ viol

Controlled Substances0.000 insp w/ viol

Vehicle Maintenance3.626 insp w/ viol

Insurance

$750,000

BIPD Coverage

—

Cargo Coverage

1 policy on file1 active

Type	Status	Insurer	Policy #	Coverage	Effective	Expires	Form
BIPD	Active	ACUITY, A MUTUAL INSURANCE COMPANY	CA-ZP9357	$750,000	Oct 2, 2025	—	91X

Insurance History (7)

Type	Insurer	Status	Coverage	Effective	Cancelled
BIPD · F91X	UNITED FINANCIAL CASUALTY COMPANY	CancelledTERM/CANCL	$750,000	Feb 1, 2023	Feb 22, 2023
BIPD · F91X	UNITED FINANCIAL CASUALTY COMPANY	ReplacedTERM/REPL	$750,000	Feb 1, 2023	Jan 1, 2023
BIPD · F91X	ACUITY, A MUTUAL INSURANCE COMPANY	ReplacedTERM/REPL	$750,000	Jan 1, 2023	Oct 2, 2025
BIPD · F91X	ACUITY, A MUTUAL INSURANCE COMPANY	Name ChangedTERM/CANCL	$750,000	Jan 1, 2023	Dec 8, 2025
BIPD · F91X	UNITED FINANCIAL CASUALTY COMPANY	ReplacedTERM/REPL	$750,000	Nov 10, 2022	Jan 1, 2023
BIPD · F91X	UNITED FINANCIAL CASUALTY COMPANY	CancelledTERM/CANCL	$750,000	Nov 10, 2022	Feb 1, 2023
BIPD · F91X	UNITED FINANCIAL CASUALTY COMPANY	CancelledCANCEL	$750,000	Feb 4, 2020	Nov 10, 2022

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API Reference

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