William Loo
Phone (626) 678-3378Rosemead, CA
Find this carrier by: USDOT 2954156 · MC 860 · 626-678-3378 · 6266783378 · Rosemead, CA
Carrier information from FMCSA records. See dates and record coverage. How to verify an FMCSA record.
- USDOT
- USDOT2954156
- MC
- 860
- Registered
- 2016 · 9 yrs
- Location
- Rosemead, CA
- MCS-150 filed
- Nov 3, 2025
USDOT registration
Active
Registration status; not operating authority
Authority record
Listed active
Common carrier; verify in Motus
Insurance record
$750,000
Stored BIPD filing
Safety rating
Not rated
No safety rating available; not a safety verdict
Overview
The short version and the key numbers.
William Loo is an active carrier and shipper based in Rosemead, CA, registered with FMCSA under USDOT 2954156 and MC 860. Phone: (626) 678-3378. It reports 1 power unit and 2 drivers on its MCS-150 (Nov 3, 2025). In the last 24 months it had 4 roadside inspections, a 33.3% vehicle out-of-service rate (national average 22.9%) and no reportable crashes in the available records.
USDOT 2954156 was first registered with FMCSA on Dec 13, 2016 (9 years ago), and its most recent MCS-150 filing is dated Nov 3, 2025. FMCSA records a revocation of common authority MC000860 effective Jun 23, 2025 (involuntary revocation). Its vehicles were inspected 4 times on record, most recently on Apr 16, 2026, most often in AZ.
Equipment on record
VIN = decoded from the carrier's vehicles · Inspection = seen at roadside inspections · MCS-150 = filed by the carrier
Dates behind this profile
- MCS-150 filing
- Nov 3, 2025
- Registration record changed
- Oct 24, 2026
- Latest inspection recorded
- Apr 16, 2026
- Latest crash recorded
- Not available
- Latest vehicle observation
- Apr 16, 2026
Each date applies to its own record. A registration change does not mean every filing changed. An inspection or vehicle observation describes that date, not continuous operation today.
USDOT registration and operating authority are different records. A crash entry records involvement, not a finding of fault. Missing information is not a clean safety record.
Not on file for USDOT 2954156: connected companies.
Company details
Filed identity, officers, contacts and registration details.
Company identity & officers
- Company officer
- William Loo
- Legal name
- William Loo
- Doing business as
- Arider Auto
- Classification
- Authorized For-Hire
- Registered as
- Carrier & Shipper
Registration & filings
- USDOT number
- 2954156
- Docket numbers
- MC 860 (active)
- Registered
- Dec 13, 2016 (9 yrs)
- Last MCS-150
- Nov 3, 2025
- Usual MCS-150 schedule
- June 2027 (see temporary relief below)
- Operation
- Interstate
- Hazmat, as filed
- No
- Passenger carrier, as filed
- Not available
FMCSA currently provides additional time for biennial updates due on or after June 1, 2026 and suspends USDOT inactivation for those missed updates. The usual schedule above does not establish a violation. Read our update guide and the cited FMCSA notice (guidance checked October 20, 2026).
Carriers in Rosemead, CA
- USDOT registrations in Rosemead
- 972
- Currently active
- 583 (60%)
- One-truck operations
- 812 (84%)
- With for-hire authority
- 456 (47%)
- Registered in the last 12 months
- 51
From FMCSA census records as of Nov 10, 2026. This carrier reports 1 power unit against a local average of 24.6.
Find this carrier by
- USDOT
- 2954156
- Docket numbers
- MC 860
- Phone
- (626) 678-3378626-678-33786266783378
- ariderauto@gmail.com
- Officers
- William Loo
- Legal name
- William Loo
- DBA
- Arider Auto
- Address
- 2209 San Gabriel Blvd Ste F, Rosemead, CA 91770
- VINs inspected under this USDOT
- 3AKJHHDR6LSLP9588, 1JJV532D6KL115915, 3AKJGLDR2GSGR6606
Available registration and contact identifiers. Vehicle identifiers below are a recent sample; open a VIN or plate to see its dated records.
Legitimacy check
A quick screen from public records. A flag is a reason to verify, not proof of wrongdoing.
- Pass: Not on the U.S. sanctions list
Name does not match the Treasury OFAC list.
- Pass: USDOT registration is active
FMCSA lists USDOT 2954156 as active.
- Check: Verify current operating authority
Stored legacy record lists Common carrier as active; confirm the current status in Motus.
- Check: Verify current insurance
Stored BIPD amount: $750,000. Check Motus filings and confirm coverage with the insurer.
- Pass: No federal out-of-service orders
None on record for this USDOT.
- Pass: No prior revocation linked
No earlier revoked USDOT is linked to this one.
Authority & insurance
Stored filing details and guidance for checking current status.
FMCSA filing records
Authority, insurance and notice records can include earlier filings. Read each recorded status and effective date; a filing alone does not confirm current authority or insurance coverage. Missing records do not establish unauthorized operation or missing insurance.
Amounts are shown exactly as filed, without scaling or currency conversion. Confirm coverage and amounts with the insurer.
Operating authority
0 available records · FMCSA release date: Nov 10, 2026. The release date applies to this collection, not the effective date of every filing.
No matching filings available here. This does not establish that no filing exists.
Insurance filings
0 available records · FMCSA release date: Nov 10, 2026. The release date applies to this collection, not the effective date of every filing.
No matching filings available here. This does not establish that no filing exists.
Suspension and revocation notices
0 available records · FMCSA release date: Nov 10, 2026. The release date applies to this collection, not the effective date of every filing.
No matching filings available here. This does not establish that no filing exists.
Insurance history
0 available records · FMCSA release date: Nov 10, 2026. The release date applies to this collection, not the effective date of every filing.
No matching filings available here. This does not establish that no filing exists.
Earlier FMCSA filing records
These records may omit later filings. Their presence does not establish current authority or coverage. Missing records do not establish that a carrier is unauthorized or uninsured. Check current records in FMCSA Motus, then confirm coverage directly with the insurer. Follow the verification guide and its FMCSA sources. Guidance checked October 20, 2026.
Stored operating authority
| Authority type | Recorded status | Application pending | Revocation pending |
|---|---|---|---|
| Common | Active | None | None |
| Contract | None | None | None |
| Broker | None | None | None |
Recorded categories and dockets
- MC 860
- Active
Stored insurance filing fields
- Liability (BIPD)
- $750,000
- Cargo
- Not on file
- Bond / trust
- Not on file
Revocations
| Docket | Authority | Type | Served | Effective |
|---|---|---|---|---|
| MC000860 | Common | Involuntary revocation | May 19, 2025 | Jun 23, 2025 |
"On file" means FMCSA received the filing. It does not confirm the policy is active today.
Safety
FMCSA's rating and how this carrier compares with the national average.
Safety rating
- Rating
- Not rated
- Recordable crash rate
- 0.000
- Driver inspections (24 mo)
- 4 (2 out of service)
- Vehicle inspections (24 mo)
- 3 (1 out of service)
Out-of-service rates (24 months)
FMCSA BASICs
| Category | Percentile | Measure | Inspections with violation | Acute / critical | Alert |
|---|---|---|---|---|---|
| Unsafe Driving | Not public | 44 | 2 | No | Not available |
| Hours-of-Service | Not public | 7.33 | 2 | No | Not available |
| Driver Fitness | Not public | 2.22 | 1 | No | Not available |
| Controlled Substances | Not public | 0 | 0 | No | Not available |
| Vehicle Maintenance | Not public | 10.57 | 3 | No | Not available |
Percentile: 0 is best, 100 is worst. FMCSA flags an alert above its threshold (65–80% depending on category). Some property-carrier percentiles are not public.
Most-cited violations, in plain English
| Code | Times | Out of service |
|---|---|---|
| 393.11A1-CSURR | 2 | 0 |
| 393.9A-LFTSI | 2 | 0 |
| 383.23A2-LCDLN | 1 | 1 |
| 392.16-D | 1 | 0 |
| 392.2-SLL | 1 | 0 |
| 392.2-SLLOWZ | 1 | 0 |
Inspections & crashes
Roadside inspections and reportable crashes in the last 24 months.
Inspection, violation and out-of-service counts: FMCSA 24-month inspection record, as of Nov 10, 2026.
Most recent
- Last inspection
- Apr 16, 2026
Latest inspections
| Date | Inspection ID | State | Location | Level | Driver viol. / OOS | Vehicle viol. / OOS | Violations |
|---|---|---|---|---|---|---|---|
| Apr 16, 2026 | 87629681 | CA | I-5 Sb South Of Fawndale Road | Walk-around (Level 2) | 3 / 2 | 1 / 1 | 4 violations
|
| Jan 9, 2026 | 86760616 | AR | Van Buren Ar | Driver only (Level 3) | 0 / 0 | 0 / 0 | No detailed violation records available |
| Jan 7, 2026 | 86744289 | AZ | Holbrook Az | Walk-around (Level 2) | 0 / 0 | 2 / 0 | 2 violations
|
| Dec 27, 2025 | 86660347 | AZ | Holbrook Az | Walk-around (Level 2) | 5 / 2 | 4 / 0 | 9 violations
|
Latest crashes
A roadside out-of-service finding applies to the inspected driver or vehicle; it is different from a federal order against the carrier. Crash involvement does not determine fault or preventability. Counts cover the stated reporting period, not the carrier’s entire history.
Where its vehicles were inspected
| State | Inspections | With OOS |
|---|---|---|
| AZ · Arizona | 2 | 1 |
| AR · Arkansas | 1 | 0 |
| CA · California | 1 | 1 |
The states where FMCSA recorded roadside inspections for this USDOT. A rough picture of where the fleet runs, not a list of lanes.
Inspections and crashes by year
| Year | Inspections | Violations | Out of service | Crashes |
|---|---|---|---|---|
| 2026 | 3 | 6 | 3 | 0 |
| 2025 | 1 | 9 | 2 | 0 |
Fleet & drivers
Filed fleet and driver counts, cargo types, and vehicles observed at inspections.
Vehicles filed on the MCS-150
| Vehicle | Owned | Term leased | Trip leased |
|---|---|---|---|
| Tractors | 0 | 1 | 0 |
| Trailers | 0 | 1 | 0 |
Drivers
- Total drivers
- 2
- CDL drivers
- 1
- Interstate, over 100 mi
- 1
- Interstate, within 100 mi
- 0
- Intrastate, over 100 mi
- 0
- Intrastate, within 100 mi
- 1
- Leased drivers / month
- Not available
Operations
- Power units
- 1
- Trucks
- 1
- Buses
- 0
- Annual miles
- 50,000 (2024)
- Seen at inspections
- 2 trucks · 1 trailer
Vehicles inspected under this USDOT
| VIN | Year | Make & model | Type | Plate | Inspections | Last seen | Violations / OOS |
|---|---|---|---|---|---|---|---|
| 3AKJHHDR6LSLP9588 | 2020 | Freightliner Cascadia | Truck Tractor | ZP68011 CA | 1 | Apr 16, 2026 | 4 / 3 |
| 1JJV532D6KL115915 | 2019 | Wabash Vans Dry Van Duraplate | Semi-Trailer | 4RZ5949 CA | 4 | Apr 16, 2026 | 0 / 0 |
| 3AKJGLDR2GSGR6606 | 2016 | Freightliner Cascadia | Truck Tractor | XP72746 CA | 3 | Jan 9, 2026 | 9 / 2 |
Vehicles recorded at roadside inspections under this USDOT (the carrier operated them; this is not a record of ownership). Open a VIN or plate for its dated carrier associations and available history. Plates can change or be reassigned. Vehicle details reflect filed records and available VIN decoding; these observations are not a complete fleet or ownership history.
Equipment evidence
- Tractor-TrailerInspection 2 truck tractors and 1 semi-trailer recorded at roadside inspections (trailer body type not decoded)
Cargo carried, as filed
Changes & history
Dated changes, earlier values and filing history for this registration.
Timeline of this registration
- Record updated: city SAN GABRIEL → ROSEMEAD.
- Most recent vehicle recorded at a roadside inspection.
- Most recent roadside inspection on file.
- First vehicle recorded at a roadside inspection under this USDOT.
- Earliest roadside inspection on file.
- MCS-150 filing on record.
- Revocation effective: Common authority MC000860.
- Revocation served: Common authority MC000860 (involuntary revocation).
- Registered with FMCSA as USDOT 2954156.
Dates come from FMCSA filings and inspection records as filed; a filing date is when FMCSA recorded it, not when an event happened on the road.
Recent changes to the record
| Date | Field | Before | After |
|---|---|---|---|
| Aug 18, 2026 | City | SAN GABRIEL | ROSEMEAD |
MCS-150 filings on record
- MCS-150 filed
Registration
- First registered with FMCSA
- Dec 13, 2016
- Last MCS-150 update
- Nov 3, 2025
Questions & answers
Quick answers, written from this carrier's FMCSA record.
Is William Loo an active carrier?
The available FMCSA record lists USDOT 2954156 as active. Registration is separate from operating authority and insurance coverage.
What is William Loo's USDOT and MC number?
USDOT 2954156; docket number MC 860.
How do I contact William Loo?
As filed with FMCSA: phone (626) 678-3378; email ariderauto@gmail.com; address 2209 San Gabriel Blvd Ste F, Rosemead, CA 91770.
What insurance does this record show for William Loo?
The stored legacy record shows $750,000 liability (BIPD). This does not establish current coverage or uninsured status. Check current filings in FMCSA Motus and confirm coverage with the insurer.
What is William Loo's safety rating?
No FMCSA safety rating is available here. Not rated does not mean safe or unsafe.
How many trucks and drivers does William Loo have?
Power units: 1; drivers: 2, as filed on its MCS-150 (Nov 3, 2025).
What does William Loo haul?
Its FMCSA filing lists these cargo types: general freight, fresh produce, meat, us mail, dry bulk, refrigerated food, beverages, paper products and 1 more cargo types.
What equipment does William Loo operate?
On government records: Tractor-Trailer (2 truck tractors and 1 semi-trailer recorded at roadside inspections (trailer body type not decoded)).
How many inspections and crashes has William Loo had?
Inspections: 4; crashes recorded: 0, in the available 24-month records.
What is the usual MCS-150 update schedule for William Loo?
The usual USDOT-digit schedule gives June 2027. The latest filing stored here is Nov 3, 2025. FMCSA currently gives extra time for biennial updates due on or after June 1, 2026 and has suspended inactivation for those missed updates. This calculated date is not a finding of noncompliance. Check the linked FMCSA notice for changes.
Reviews
From brokers, shippers and drivers who worked with this carrier.