RTS Financial
Fast funding for your trucking business.
Get a free quoteFMCSA Carrier Profile
SOUTHERN MARYLNAD HEATING & AIR INC
Waldorf, MD
CarrierChk vetting signal
Review recommended
Elevated Out-of-Service Rate
46.2% of this carrier's roadside inspections in the last 24 months put a driver or vehicle out of service — higher than 88% of carriers with a comparable number of inspections. Drivers were put out of service on 50.0% of 8 driver inspections — higher than 96% of carriers with a comparable number of driver inspections (national average 5.5%). This is a CarrierChk calculation from FMCSA inspection records, not an FMCSA rating.
See details ↓
FMCSA status: Active registration · no operating authority · DOT 1348080
Active
No Safety Rating
Broker Vetting Summary
Key signals from current FMCSA records
Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Not Rated
46.2% OOS · 25 inspections on record
Flags · 1
Elevated Out-of-Service Rate
46.2% of this carrier's roadside inspections in the last 24 months put a driver or vehicle out of service — higher than 88% of carriers with a comparable number of inspections. Drivers were put out of service on 50.0% of 8 driver inspections — higher than 96% of carriers with a comparable number of driver inspections (national average 5.5%). This is a CarrierChk calculation from FMCSA inspection records, not an FMCSA rating.
Vetting notes
- Active FMCSA registration, but no active for-hire operating authority on record
- Registered with FMCSA as a private carrier — not registered to haul other companies' freight for hire
- No active insurance filing found on record
- Driver out-of-service rate 50.0% — above the 5.5% national average
- Vehicle out-of-service rate 25.0% — above the 20.7% national average
- 25 FMCSA inspections on record
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
1348080
Safety Rating
Not Rated
Operation Classification
Private (property)
MCS-150 Filed
October 3, 2024
FMCSA Registration
March 20, 2005
Annual Mileage
200,000 mi (2023)
Contact Information
Address
17 Irongate Drive, Waldorf, MD 20602
Phone
Email
Website
Owner / Officer
David L. Ernst
Cargo Types
General FreightOther Cargo
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
25
Driver Inspections
12
Vehicle Inspections
23
Out-of-Service Violations
9
Violations by Category
Vehicle Maintenance22
Unsafe Driving6
Hours of Service0
OOS Rates vs. National Average
Driver OOS Rate50.0% · national avg 5.5%
⚠ Above national average (44.5pp higher)
Vehicle OOS Rate25.0% · national avg 20.7%
⚠ Above national average (4.3pp higher)
46.2% of 13 inspections in the last 24 months put a driver or vehicle out of service —
88th percentile among carriers with 10–24 inspections (lower is better).
CarrierChk calculation from FMCSA roadside inspection records, not an FMCSA score.
Inspection Trend by Year
2026
2025
2024
Violation Rate by Category
Share of roadside inspections in FMCSA's rolling 24-month window that found a violation in each category. The individual violations are listed under each inspection in Inspection Details below. None of this is the basis of the safety rating, which comes from an on-site compliance review.
Vehicle Maintenance
6 of 15 inspections
Unsafe Driving
3 of 16 inspections
Hours of Service
0 of 16 inspections
Driver Fitness
5 of 16 inspections
Controlled Substances
0 of 16 inspections
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
MD16
VA2
US1
Fleet & Equipment (12)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~12
of 20 reported to FMCSA
Trailers
—
seen at inspection
Equipment types observed
Chassis / Incomplete
11
Not Applicable
1
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2016 Ford E-350 | Chassis / Incomplete · Class 3 | 1FDWE3FLXGDC13065 | 3 | — |
| 2022 Ford F-550 | Chassis / Incomplete · Class 5 | 1FDUF5GT0NDA03375 | 2 | — |
| 2021 Ford E-350 | Chassis / Incomplete · Class 3 | 1FDWE3FNXMDC33460 | 2 | 2 |
| 2023 Ford E-450 | Chassis / Incomplete · Class 4 | 1FDXE4FN0PDD37227 | 2 | 1 |
| 2024 Ford E-450 | Chassis / Incomplete · Class 4 | 1FDXE4FN2RDD01011 | 2 | 1 |
| 2021 Chevrolet 3500/4500 | Chassis / Incomplete · Class 4 | 54DCDW1D9MS205683 | 2 | — |
| 2006 Ford E-350 | Chassis / Incomplete · Class 3 | 1FDWE35L56HA48261 | 1 | — |
| 2013 Ford E-350 | Chassis / Incomplete · Class 3 | 1FDWE3FL8DDA41906 | 1 | 1 |
| 2022 Ford E-450 | Chassis / Incomplete · Class 4 | 1FDXE4FN0NDC32538 | 1 | — |
| 2025 Ford E-450 | Not Applicable · Class 4 | 1FDXE4FN6SDD04144 | 1 | 1 |
Show all 12 units
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2024 Ford E-450 | Chassis / Incomplete · Class 4 | 1FDXE4FN8RDD02485 | 1 | — |
| 2020 Chevrolet Express | Chassis / Incomplete · Class 3 | 1GB3GSFG3L1123593 | 1 | — |
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.
Inspection Details
Each roadside inspection with its violations
Inspection Records (25)
| Date | Report # | Location | Level | Viol | OOS | Shipper | Unit Type | Make | VIN | License |
|---|---|---|---|---|---|---|---|---|---|---|
| October 2, 2026 | 3245C01084 | ANNAPOLIS MD | II | — | — | SAME AS CARRIER | Straight Truck |
CHEVROLET |
1GB3GSFG3L1123593 |
MD 8EM9809 |
| August 7, 2026 | 7106001176 | GAINESVILLE VA | III | 3 | 1 | — | Straight Truck |
FORD |
1FDXE4FN6SDD04144 |
MD 4GD0378 |
| 391.41APC | OOSMedical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency | Medical Certificate | ||||||||
| 396.17C-PI | Operating a CMV without documentation of a periodic inspection | Inspection Reports | ||||||||
| 392.2-SLLIT | State/Local Laws - Improper turns | Dangerous Driving | ||||||||
| June 12, 2026 | 5051C00077 | SILVER SPRING MD | I | 9 | 2 | — | Straight Truck |
FORD |
1FDWE3FL8DDA41906 |
VA UC64064 |
| 393.75C-TAOTD-LT1/32 | OOSTires - Less than 1/32 inch tread depth at 3 locations/2 adjacent tread grooves | Tires | ||||||||
| 391.41APC | OOSMedical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency | Medical Certificate | ||||||||
| 393.95F | Emergency Equipment - Stopped vehicle warning devices missing or improper | Emergency Equipment | ||||||||
| 393.11A1-LCL | Lighting - Clearance lamp(s) missing | Clearance Identification Lamps/Other | ||||||||
| 390.21TB1-MC | Operating a CMV without legal name or trade name displayed | |||||||||
| 393.9A-LCL | Lighting - Clearance lamp(s) inoperative | Clearance Identification Lamps/Other | ||||||||
| 390.21TB2-DOT | Operate a CMV without USDOT number displayed. Must be preceded by the letters USDOT | |||||||||
| 393.9A-LIL | Lighting - Identification lamp(s) inoperative | Clearance Identification Lamps/Other | ||||||||
| 393.95A1 | Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. | Emergency Equipment | ||||||||
| June 4, 2026 | 5065C00056 | OLNEY MD | I | 4 | 2 | — | Straight Truck |
FORD |
1FDWE3FNXMDC33460 |
MD 1EM8183 |
| 393.40F-BNPB | OOSBrake - Inoperative or missing parking/emergency brake on power unit | Brakes All Others | ||||||||
| 391.11B4-CLHA | OOSMedical (Certificate) - Operating a commercial vehicle without corrective lenses or hearing aid as indicated on the driver's medical certificate | Physical | ||||||||
| 396.17C-PI | Operating a CMV without documentation of a periodic inspection | Inspection Reports | ||||||||
| 393.100C-C | Cargo - Cargo not secured against shifting | General Securement | ||||||||
| May 7, 2026 | 2048C00694 | FREDERICK MD | II | — | — | N/A | Straight Truck |
FORD |
1FDXE4FN2RDD01011 |
MD 4GA3004 |
| April 27, 2026 | 5581C00056 | UPPER MARLBORO MD | I | 2 | — | — | Straight Truck |
FORD |
1FDUF5GT0NDA03375 |
MD 8FF9809 |
| 393.100C-C | Cargo - Cargo not secured against shifting | General Securement | ||||||||
| 393.95A4-EEUS | Emergency Equipment - Fire Extinguishers - unsecured | Emergency Equipment | ||||||||
| April 8, 2026 | 0273C00542 | KETTERING MD | II | 1 | 1 | SAME AS CARRIER | Straight Truck |
FORD |
1FDWE3FNXMDC33460 |
MD 1EM8183 |
| 391.41APC | OOSMedical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency | Medical Certificate | ||||||||
| March 4, 2026 | 9813C00088 | FREDERICK MD | I | 2 | 2 | — | Straight Truck |
FORD |
1FDXE4FN2RDD01011 |
MD 4GA3004 |
| 391.11B2-S | OOSDriver cannot satisfy the English language proficiency requirements of 391.11(b)(2) in accordance with the current corresponding FMCSA enforcement guidance (391.1 | General Driver Qualification | ||||||||
| 391.41APC | OOSMedical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency | Medical Certificate | ||||||||
| December 17, 2025 | 0169C00474 | WYE MILLS MD | II | — | — | — | Straight Truck |
FORD |
1FDXE4FN0PDD37227 |
MD 4FH9416 |
| December 1, 2025 | 7103C00018 | HOLLYWOOD MD | I | 2 | — | — | Straight Truck |
FORD |
1FDWE3FLXGDC13065 |
MD 2DS0612 |
| 393.9A-LHLI | Lighting - Headlamp(s) - Any inoperative | Lighting | ||||||||
| 393.9A-LIL | Lighting - Identification lamp(s) inoperative | Clearance Identification Lamps/Other | ||||||||
Shippers Seen at Inspections
Shipper names recorded by roadside inspectors over roughly the last three years. Only inspected loads appear, so this is a sample of who the carrier hauls for, not a complete customer list. Names are as entered at the roadside; blanks and placeholders such as “N/A” or “same as carrier” are left out.
| Shipper | Inspections | Most recent |
|---|---|---|
| CARRIER IS SHIPPER | 1 | February 19, 2024 |
CarrierChk Partners
View all partners →Your business here
Introduce your business to carriers.
Explore partnership
Sponsored listings — CarrierChk may be compensated for referrals. Partner with CarrierChk →
Data sourced from FMCSA MCMIS via Socrata. Record last updated: November 1, 2026.
Verify directly on FMCSA SAFER Web.
Verify Any Carrier Free
Search any DOT or MC number for live authority status, insurance on file, and full safety history.
This profile is built from public FMCSA records. If this is your company, you can hide your contact details or request removal of this page.