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Case FileDOT 3402187
30
Caution
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Carrier Profile · DOT 3402187

Mao Sim

Private Carrier · Not For HireDorchester, MA 02125
Updated 2026-05-29T12:34:25.215Z·By Sarah Chen, Lead Safety Analyst·Reviewed by James Rodriguez·Methodology v2.1

Mao Sim has a fleet of 1 power units and 1 drivers. It does not hold for-hire operating authority and may operate as a private carrier. No roadside inspection history is on record.

Identity
Legal nameMao Sim
DBA
DOT #3402187
MC #
CityDorchester
StateMassachusetts
ZIP02125
Authority age6.3y
StatusActive (No Auth)
Common authorityNot authorized
Contract authorityNot authorized
Broker authorityNot authorized
OperationIntrastate
HazmatNot authorized
MCS-150 filed12/03/2024
Company officerMao Sim
FMCSA SAFER →FMCSA Safety Scores (SMS) →
Fleet size
1
Power units
Drivers
1
Total drivers
Inspections
0
On record
Crashes
0
On record
OOS Rate
No inspections on record

Source: FMCSA compliance records, Truck Graph analysis. View methodology

Location

54 CRESCENT AVE UNIT M, Dorchester, MA, 02125

54 CRESCENT AVE UNIT M, DORCHESTER, MA, 02125Open in Maps →

Inspection history

0 total inspections. OOS rate: N/A%. Showing last 5.

No inspection records found.

Source: FMCSA inspection records. View methodology

Crash history

0 crashes on record. Showing last 3.

No crash records found.

Source: FMCSA crash records. View methodology

Insurance status

Current insurance filing on record with FMCSA.

No active insurance filing found. Verify directly with carrier.

Source: FMCSA insurance filings. View methodology

Related carriers in Massachusetts

Active carriers in MA, similar fleet size.

Cme Enterprises INC
Beverly, MA
150,000 power units · DOT 4199865
Moderna Tx INC
Cambridge, MA
75,000 power units · DOT 3574670
Oasis Property Maintenance
Haverhill, MA
70,000 power units · DOT 4414832
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Authority timeline

Key events in this carrier's operating authority history.

Authority Granted
Feb 2020
FMCSA issued operating authority
Active
Current
Authority currently active

Source: FMCSA authority records and revocation orders. View methodology

Research this company

Verify independently using official government and public sources.

FMCSA SAFER System
Official DOT safety record, authority status, inspections
Google Search
News, reviews, and web presence
Massachusetts Secretary of State
Business registration and corporate filings
Better Business Bureau
Complaints, ratings, and accreditation status
LinkedIn
Company employees, leadership, and network
PACER (Federal Courts)
Federal litigation, bankruptcy filings

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Mao Sim is based in Dorchester, MA, which is part of the larger Massachusetts trucking market. Browse the full national carrier directory to compare across all 50 states.

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Frequently asked

Mao Sim

Answers from verified compliance records.

Is Mao Sim authorized to operate?

Mao Sim's USDOT number is active but it does not hold operating authority for for-hire interstate operations. It may operate as a private carrier. Verify status before tendering.

What is Mao Sim's safety record?

Mao Sim does not have a substantial inspection history on record. This may indicate limited interstate operations.

How many trucks does Mao Sim operate?

Mao Sim operates 1 power units with approximately 1 drivers.

Is Mao Sim insured?

Insurance filing details are not available in the current dataset. Verify directly with the carrier before tendering.

Has Mao Sim had any risk indicators?

No risk indicators have been detected for Mao Sim as of the most recent data sync.

What is the DOT number for Mao Sim?

Mao Sim's DOT number is 3402187. These identifiers are assigned by the FMCSA and can be used to look up this carrier in official compliance databases.

Cite this page

For journalists and researchers

Truck Graph data is open and citable. For press inquiries, contact our editorial team.

APA
Truck Graph. (2026). Mao Sim Safety Record, DOT 3402187. Retrieved from https://truckgraph.com/carriers/3402187
MLA
"Mao Sim Safety Record, DOT 3402187." Truck Graph, May 29, 2026, https://truckgraph.com/carriers/3402187
Chicago
"Mao Sim Safety Record, DOT 3402187." Truck Graph. Last modified May 29, 2026. https://truckgraph.com/carriers/3402187
SC
Sarah Chen
Lead Safety Analyst · 12 years freight intelligence
JR
James Rodriguez
Risk Analysis Editor
Last editorial review
Methodology v2.1 →