FMCSA Carrier Profile
HY SUCCESS INC
Diamond Bar, CA
Active
Authority Active
No Safety Rating
Active 6 yrs, 8 mo
Authority
Active
MC-1058356 · Common carrier
Insurance
On File
$750,000 BIPD
Safety
Not Rated
22.2% OOS · 15 inspections on record
✓ No risk flags found on authority or insurance records
Vetting notes
- Operating authority active for 6 yrs, 8 mo
- Insurance on file: $750,000
- Vehicle out-of-service rate 25.0% — above the 20.7% national average
- 15 FMCSA inspections on record
Operating Authority
MC1058356
Common Carrier
Insurance on File
SOUTHLAKE SPECIALTY INSURANCE COMPANY
BI&PD · $750,000 · Policy TMA91001875
Required Filings
Liability (BIPD)
$750,000
FMCSA Registration
DOT Number
3324323
MC Number
MC-1058356
Operating Status
Active
Safety Rating
Not Rated
MCS-150 Filed
April 3, 2026
FMCSA Registration
August 19, 2019
Authority Granted
December 16, 2019
Annual Mileage
50,000 mi (2025)
Contact Information
Location
Diamond Bar, CA
Email
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Out-of-Service Rate
22.2% of inspections ended in an out-of-service order
9 inspections in 24 months
Vehicle OOS Rate
16.7%
Driver OOS Rate
0.0%
Ranks in the 54th percentile among carriers with 5–9 inspections — lower is better. CarrierChk calculation from FMCSA roadside inspection records, not an FMCSA score.
Safety & Inspection Summary
Total Inspections
15
Driver Inspections
4
Vehicle Inspections
12
Total OOS Orders
6
Violations by Category
Vehicle Maintenance18
Unsafe Driving1
Hours of Service8
OOS Rates vs. National Average
Driver OOS Rate75.0% · national avg 5.5%
⚠ Above national average (69.5pp higher)
Vehicle OOS Rate25.0% · national avg 20.7%
⚠ Above national average (4.3pp higher)
Inspection Trend by Year
2025
2024
Inspection Records (15)
| Date | State | Level | Vehicle | Viol. | Status |
|---|---|---|---|---|---|
| July 24, 2025 | CA | Level I — Full | FRHT · 3AKJGLDR8GSHF1572 | 4 | 1 OOS |
| June 18, 2025 | CA | Level II — Walk-Around | FRHT · 3AKJGLDR8GSHF1572 | 1 | Passed |
| April 23, 2025 | NV | Level II — Walk-Around | FRHT · 3AKJGLDR8GSHF1572 | 0 | Clean |
| March 11, 2025 | CA | Level II — Walk-Around | FRHT · 3AKJGLDR8GSHF1572 | 0 | Clean |
| January 30, 2025 | CA | Level III — Driver Only | FRHT · 3AKJGLDR8GSHF1572 | 0 | Clean |
| January 5, 2025 | CA | Level III — Driver Only | FRHT · 3AKJGLDR8GSHF1572 | 0 | Clean |
| November 20, 2024 | CA | Level V — Vehicle Only | FRHT · 3AKJGLDR8GSHF1572 | 0 | Clean |
| October 15, 2024 | WA | Level II — Walk-Around | FREIGHTLIN · 3AKJGLDR8GSHF1572 | 2 | 1 OOS |
| October 14, 2024 | CA | Level II — Walk-Around | FRHT · 3AKJGLDR8GSHF1572 | 1 | Passed |
| August 26, 2024 | CA | Level II — Walk-Around | FRHT · 3AKJHHDR7LSLH2161 | 1 | 1 OOS |
| August 9, 2024 | CA | Level II — Walk-Around | FRHT · 3AKJGLDR2JSJK2110 | 0 | Clean |
| July 7, 2024 | CA | Level I — Full | FRHT · 3AKJGLDR8GSHF1572 | 7 | 1 OOS |
Showing 12 of 15 inspection records
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
CA10
AZ2
NM1
NV1
WA1
Fleet & Equipment (11)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~3
of 1 reported to FMCSA
Trailers
~8
seen at inspection
Equipment types observed
Dry Van
8
Tractor
3
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2016 Freightliner Cascadia | Tractor · Class 8 | 3AKJGLDR8GSHF1572 | 12 | 5 |
| 2009 Great Dane Trailers | Dry Van · 53 ft | 1GRAP06239K208308 | 3 | 1 |
| 2009 Great Dane Trailers | Dry Van · 53 ft | 1GRAP062X9T550090 | 2 | — |
| 2009 Wabash Wabash National Corporation | Dry Van · 53 ft | 1JJV532W59L313817 | 2 | 1 |
| 2008 Wabash Wabash National Corporation | Dry Van · 53 ft | 1JJV532W68L178281 | 2 | 2 |
| 2005 Wabash Wabash National Corporation | Dry Van · 53 ft | 1JJV532W15L964257 | 1 | 1 |
| 2009 Utility Trailer Manufacturer | Dry Van · 53 ft | 1UYVS25339P611256 | 1 | 1 |
| 2016 Utility Trailer Manufacturer | Dry Van · 53 ft | 1UYVS2539GG523535 | 1 | — |
| 2018 Freightliner Cascadia | Tractor · Class 8 | 3AKJGLDR2JSJK2110 | 1 | — |
| 2020 Freightliner Cascadia | Tractor · Class 8 | 3AKJHHDR7LSLH2161 | 1 | 1 |
Show all 11 units
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2006 Hyundai Translead Trailers | Dry Van · 53 ft | 3H3V532CX6T020013 | 1 | — |
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.
Authority History
| Date | Status | Type |
|---|---|---|
| December 15, 2025 | INVOLUNTARY REVOCATION | Common |
| December 13, 2024 | INVOLUNTARY REVOCATION | Common |
| September 11, 2024 | INVOLUNTARY REVOCATION | Common |
| December 11, 2023 | INVOLUNTARY REVOCATION | Common |
| December 14, 2020 | INVOLUNTARY REVOCATION | Common |
| December 16, 2019 | GRANTED | Common Carrier |
Insurance & Revocation Filings
| Date | Type | Status |
|---|---|---|
| BI&PD Primary/Excess | Cancellation Pending |
Other Carriers in Diamond Bar, CA
Data sourced from FMCSA MCMIS via Socrata. Last updated: August 29, 2026.
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