FMCSA Carrier Profile
JAMES T WARRING SONS INC
DBA: Warco Inc
Owner / Officer: Martha Haynes
Active
Satisfactory
Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Satisfactory
0th pct · 18 inspections on record
✓ No risk flags found on authority or insurance records
Vetting Notes
JAMES T WARRING SONS INC is an active FMCSA-registered motor carrier based in Capitol Heights, Maryland, operating under DOT 340474. No high-severity flags were found on authority or insurance records. Across 18 FMCSA inspections on record, this carrier shows 35.7% vehicle OOS and 11.1% driver OOS. Authority and safety history are clean as of this page's last update.
FMCSA Registration
DOT Number
340474
Operating Status
Active
Safety Rating
Satisfactory
Entity Type
Corporation
MCS-150 Filed
January 15, 2026
FMCSA Registration
January 17, 1989
Annual Mileage
260,274 mi (2025)
Contact Information
Address
4545 S Street, Capitol Heights, MD 20743
Phone
Email
Owner / Officer
Martha Haynes
Officer 2
Patrick Warring
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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
18
Driver Inspections
9
Vehicle Inspections
14
Total OOS Orders
6
Violations by Category
Vehicle Maintenance17
Unsafe Driving3
Hours of Service0
OOS Rates vs. National Average
Driver OOS Rate11.1% · national avg 5.5%
⚠ Above national average (5.6pp higher)
Vehicle OOS Rate35.7% · national avg 20.7%
⚠ Above national average (15.0pp higher)
Inspection Trend by Year
2026
2025
2024
Inspection Records (18)
| Date | State | Level | Vehicle | Viol. | Status |
|---|---|---|---|---|---|
| April 30, 2025 | MD | Level II — Walk-Around | KENWORTH · 1XKZAP8X6SJ386391 | 0 | Clean |
| May 29, 2025 | DC | Level III — Driver Only | KENWORTH · 3BKJHM6X2PF582872 | 0 | Clean |
| April 28, 2026 | MD | Level I — Full | KENWORTH · 1XKZAP8X6SJ386391 | 0 | Clean |
| November 26, 2024 | MD | Level I — Full | KW · 1XKZAP8X6SJ386391 | 2 | Passed |
| March 26, 2026 | PA | Level II — Walk-Around | KENWORTH · 1XKZAP8X7SJ190024 | 0 | Clean |
| February 25, 2025 | MD | Level II — Walk-Around | KW · 1XKZAK8X6PJ260042 | 0 | Clean |
| March 24, 2026 | MD | Level II — Walk-Around | KENWORTH · 2NK3HM6X2SM135227 | 1 | Passed |
| October 23, 2024 | PA | Level II — Walk-Around | KW · 3WKDAP8XXGF116859 | 2 | Passed |
| April 22, 2026 | DC | Level III — Driver Only | KENWORTH · 2NK3HM6X2SM135227 | 1 | Passed |
| February 18, 2026 | DC | Level III — Driver Only | KENWORTH · 2NK3HM6X2SM135227 | 1 | Passed |
| February 18, 2025 | MD | Level III — Driver Only | KW · 1XKZAK8X8PJ260043 | 0 | Clean |
| October 15, 2024 | MD | Level II — Walk-Around | KW · 1XKZAP8X6SJ386391 | 0 | Clean |
Showing 12 of 18 inspection records
Other Carriers in Capitol Heights, MD
Data sourced from FMCSA MCMIS via Socrata. Last updated: August 6, 2026.
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