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R L MCNAIR & SON LLC
Emmitsburg, MD
CarrierChk vetting signal
No flags raised
Authority, insurance, safety rating, crash records and out-of-service rates checked
FMCSA status: Active & Authorized · DOT 451422 · MC 125283
No Safety Rating
Active 8 yrs, 1 mo
Broker Vetting Summary
Key signals from current FMCSA records
Authority
Active
MC-125283 · Common carrier
Insurance
On File
Selective Insurance Company Of The Southeast
Safety
Not Rated
25.0% OOS · 48 inspections on record
✓ No risk flags found on authority or insurance records
Vetting notes
- Operating authority active for 8 yrs, 1 mo
- Insurance on file: $750,000
- Vehicle out-of-service rate 25.0% — above the 20.7% national average
- Driver out-of-service rate 0.0% — below the 5.5% national average
- 48 FMCSA inspections on record
Authority & Compliance
Authority, insurance and required filings
Operating Authority
MC125283
Common Carrier
Insurance on File
SELECTIVE INSURANCE COMPANY OF THE SOUTHEAST
BI&PD · $750,000 · Policy S2420304
Required Filings
Liability (BIPD)
$750,000
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
451422
MC Number
MC-125283
Safety Rating
Not Rated
Entity Type
Corporation
Operation Classification
Authorized for hire, Private (property)
MCS-150 Filed
January 30, 2026
FMCSA Registration
July 10, 1991
Authority Granted
September 14, 2018
Annual Mileage
743,079 mi (2025)
Contact Information
Address
17618 Old Gettysburg Rd, Emmitsburg, MD 21727-9101
Phone
Email
Owner / Officer
Terry Mcnair
Cargo Types
General Freight
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
48
Driver Inspections
17
Vehicle Inspections
40
Out-of-Service Violations
11
Violations by Category
Vehicle Maintenance42
Unsafe Driving8
Hours of Service0
OOS Rates vs. National Average
Driver OOS Rate0.0% · national avg 5.5%
✓ Below national average
Vehicle OOS Rate25.0% · national avg 20.7%
⚠ Above national average (4.3pp higher)
25.0% of 32 inspections in the last 24 months put a driver or vehicle out of service —
73rd percentile among carriers with 25–99 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
15 of 30 inspections
Unsafe Driving
6 of 34 inspections
Hours of Service
0 of 34 inspections
Driver Fitness
1 of 34 inspections
Controlled Substances
1 of 34 inspections
Crash History (1)
Crashes reported to FMCSA in the last 24 months. A crash appearing here is a reported event, not a finding of fault.
1
Crashes
0
Fatalities
0
Injuries
1
Tow-aways
| Date | State | Fatal | Injured | Tow | Conditions |
|---|---|---|---|---|---|
| August 26, 2025 | PA | — | — | Yes | No Adverse Conditions · Daylight · Dry |
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
MD31
PA11
Fleet & Equipment (14)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~14
of 21 reported to FMCSA
Trailers
—
seen at inspection
Equipment types observed
Truck
10
Not Applicable
2
Straight Truck
1
Tractor
1
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2002 Peterbilt 379 | Truck · Class 8 | 1NP5XBTX52N581726 | 6 | 1 |
| 2005 Peterbilt 379 | Truck · Class 8 | 1NP5LB0X75D862162 | 5 | 2 |
| 2001 Kenworth W900 | Truck · Class 8 | 1NKWLB0X31J876002 | 4 | — |
| 2000 Kenworth W900 | Truck · Class 8 | 1NKWXBEX4YS850073 | 4 | — |
| 2001 Peterbilt 379 | Truck · Class 8 | 1NP5XBEX41N563214 | 3 | 2 |
| 2019 Peterbilt 389 | Truck · Class 8 | 1NPXL40X6KD627137 | 3 | 1 |
| 2009 Peterbilt 389 | Tractor · Class 8 | 1XPXD4EX39D775090 | 3 | 1 |
| 2000 Kenworth W900 | Truck · Class 8 | 1NKWLB0X7YJ848875 | 2 | 2 |
| 2003 Peterbilt 379 | Truck · Class 8 | 1NP5XB0X63D595078 | 2 | — |
| 2023 Peterbilt 389 | Truck · Class 8 | 1NPXL40X1PD888179 | 2 | — |
Show all 14 units
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2004 Kenworth W900 | Not Applicable · Class 8 | 1NKWLB0X44J066883 | 1 | — |
| 2006 Kenworth W9 Series | Truck · Class 8 | 1NKWXBEX66J135895 | 1 | — |
| 2017 Kenworth T880 | Not Applicable · Class 8 | 1NKZX4TX6HJ145616 | 1 | — |
| Peterbilt | Straight Truck | 1NPXGGGG10D146849 | 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 (48)
| Date | Report # | Location | Level | Viol | OOS | Shipper | Unit Type | Make | VIN | License |
|---|---|---|---|---|---|---|---|---|---|---|
| September 6, 2026 | 3278C00111 | BALTIMORE MD | II | — | — | — | Straight Truck |
KENWORTH |
1NKWLB0X44J066883 |
MD 297ED30 |
| August 29, 2026 | 3233C00392 | BALTIMORE MD | II | — | — | — | Straight Truck |
KENWORTH |
1NKZX4TX6HJ145616 |
MD 310ED68 |
| August 27, 2026 | E919623972 | WEST PENNSBORO TOWNSHIP PA | II | 1 | — | RL MCNAIR | Straight Truck |
KENWORTH |
1NKWLB0X31J876002 |
MD 254ED59 |
| 393.9A-LBL | Lighting - Backup lamp inoperative | Lighting | ||||||||
| August 10, 2026 | H206622269 | SOUTH MIDDLETON TWP PA | II | 2 | — | GAF BUILDING MATERIALS CORPORATION | Straight Truck |
KENWORTH |
1NKWXBEX4YS850073 |
MD 268ED47 |
| 392.2-SLL | State/Local Laws - | |||||||||
| 396.9D2-FTF | Failing to correct the violation(s)/defect(s) noted on the roadside inspection report | Inspection Reports | ||||||||
| July 6, 2026 | 0226C00923 | PARKTON MD | II | 1 | 1 | R L MCNAIR | Straight Truck |
PETERBILT |
1XPXD4EX39D775090 |
MD 381ED48 |
| 393.134B-CRHLC | OOSRoll-on/Roll-off/Hook Lift Containers - Improper securement of a roll-on/roll-off and hook lift container | Improper Load Securement | ||||||||
| June 30, 2026 | XL00115007 | NEWBERRY TWP PA | III | — | — | R L MCNAIR & SON LLC | Straight Truck |
PETERBILT |
1XPXD4EX39D775090 |
MD 381ED48 |
| May 18, 2026 | H206613860 | PENN TOWNSHIP PA | II | 1 | — | PENNSY SUPPLY INC | Straight Truck |
KENWORTH |
1NKWXBEX4YS850073 |
MD 268ED47 |
| 392.2-SLL | State/Local Laws - | |||||||||
| May 13, 2026 | 0226C00826 | PARKTON MD | II | 2 | 1 | R L MCNAIR | Straight Truck |
PETERBILT |
1NP5LB0X75D862162 |
MD 375ED11 |
| 392.4A-DOSP | OOSDrugs/Other Substances - Operate a CMV while in possession. | Drugs | ||||||||
| 392.2-SLLEWG3 | State/Local Laws - Excessive weight - More than 5000 lbs over on allowable gross weight | |||||||||
| April 20, 2026 | J608611004 | WINDSOR TWP PA | I | 1 | — | — | Straight Truck |
PETERBILT |
1NPXL40X6KD627137 |
MD 322ED68 |
| 393.45B2-B-AIR | Air Brake - Hose/tubing damaged or not secured | Brakes All Others | ||||||||
| March 9, 2026 | 0327C00808 | FREDERICK MD | I | 2 | — | N/A | Straight Truck |
PETERBILT |
1NPXL40X1PD888179 |
MD 345ED12 |
| 393.47E | Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt | Brakes Out of Adjustment | ||||||||
| 393.53B-B | Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear | Brakes All Others | ||||||||
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 |
|---|---|---|
| GAF BUILDING MATERIALS CORPORATION | 1 | August 10, 2026 |
| PENNSY SUPPLY INC | 1 | May 18, 2026 |
| SPRCIALTY GRANULES | 1 | January 25, 2024 |
History & Filings
Authority, insurance and process-agent records
Authority History
| Date | Status | Type |
|---|---|---|
| February 14, 2019 | DISCONTINUED REVOCATION | Common |
| January 22, 2019 | INVOLUNTARY REVOCATION | Common |
| September 14, 2018 | GRANTED | Common Carrier |
Insurance & Revocation Filings
| Date | Type | Status |
|---|---|---|
| April 24, 2019 | BI&PD Primary/Excess | On file |
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Data sourced from FMCSA MCMIS via Socrata. Record last updated: October 18, 2026.
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