FMCSA Carrier Profile
SUPERIOR MACHINE COMPANY OF SC INC
Owner / Officer: John Ham
Active
Satisfactory
Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Satisfactory
0th pct · 7 inspections on record
✓ No risk flags found on authority or insurance records
Vetting Notes
SUPERIOR MACHINE COMPANY OF SC INC is an active FMCSA-registered motor carrier based in Florence, South Carolina, operating under DOT 112747. No high-severity flags were found on authority or insurance records. Across 7 FMCSA inspections on record, this carrier shows 20.0% vehicle OOS and 33.3% driver OOS. Authority and safety history are clean as of this page's last update.
FMCSA Registration
DOT Number
112747
Operating Status
Active
Safety Rating
Satisfactory
Entity Type
Corporation
MCS-150 Filed
May 2, 2024
FMCSA Registration
June 1, 1974
Annual Mileage
94,000 mi (2023)
Contact Information
Address
692 N Cashua Dr, Florence, SC 29501
Phone
Email
Owner / Officer
John Ham
Officer 2
Robert Vassy
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Safety Percentile
0th percentile
vs. peer carriers
✓ Below FMCSA alert threshold (65th pct) · lower percentile = fewer violations than peers · source: FMCSA SMS
Safety & Inspection Summary
Total Inspections
7
Driver Inspections
3
Vehicle Inspections
5
Total OOS Orders
2
Violations by Category
Vehicle Maintenance3
Unsafe Driving0
Hours of Service1
OOS Rates vs. National Average
Driver OOS Rate33.3% · national avg 5.5%
⚠ Above national average (27.8pp higher)
Vehicle OOS Rate20.0% · national avg 20.7%
✓ Below national average
Inspection Trend by Year
2026
2025
2024
Inspection Records (7)
| Date | State | Level | Vehicle | Viol. | Status |
|---|---|---|---|---|---|
| December 30, 2025 | NC | Level II — Walk-Around | INTL · 1HTSCAAM1SH233044 | 0 | Clean |
| May 28, 2026 | KY | Level I — Full | KW · 1XKYD49X4GJ478140 | 3 | 1 OOS |
| January 20, 2026 | TN | Level II — Walk-Around | KENWORTH · 1XKWDB0X35J103362 | 0 | Clean |
| March 19, 2024 | SC | Level III — Driver Only | — | 0 | Clean |
| March 15, 2024 | TN | Level II — Walk-Around | — | 0 | Clean |
| October 9, 2025 | NC | Level III — Driver Only | KW · 1XKWDB0X35J103362 | 0 | Clean |
| October 2, 2024 | KY | Level II — Walk-Around | GMC · 1GD38PEY0NF252926 | 1 | 1 OOS |
Other Carriers in Florence, SC
Data sourced from FMCSA MCMIS via Socrata. Last updated: August 8, 2026.
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