Safety Measurement System - Complete SMS Profile (U.S. DOT# 4067712)

SOUTHERN BUILDING SUPPLY LLC

DBA: SOUTHERN BUILDING SUPPLY

U.S. DOT#: 4067712

Number of Vehicles: 3
Number of Drivers: 3
Number of Inspections: 14

Safety Rating & OOS Rates AND Licensing and Insurance

As part of FMCSA’s IT modernization strategy, we are merging our data platforms to make it easier for you to find the information you need. For safety rating, Out-of-Service (OOS) rates, and licensing and insurance information, visit Motus, the FMCSA Registration and Management system.

BASIC Status (Public Property Carrier View)

Behavior Analysis & Safety Improvement Categories (BASICs) Based on a 24-month record ending April 24, 2026

On-Road Performance
5.61 Measure	Not Public	0 Measure	5.33 Measure	0 Measure	Not Public	0 Measure
On-Road Performance Detail
Driver Inspections with Unsafe Driving Violations: 1 Safety Event Group: No Safety Event Grouping Avg. PU × UF: 2.7 Segment: Straight Carrier	Not Public	Driver Inspections: 14 with HOS Compliance Violations: 0 Safety Event Group: 11-20 relevant driver inspections	Vehicle Inspections: 2 with Vehicle Maint. Violations: 2 Safety Event Group: No Safety Event Grouping	Driver Inspections: 14 with Drugs/Alcohol Violations: 0 Safety Event Group: No Safety Event Grouping	Not Public	Driver Inspections: 14 with Driver Fitness Violations: 0 Safety Event Group: 11-20 relevant driver inspections
Investigation Results
No Acute/Critical Violations Discovered	N/A	No Acute/Critical Violations Discovered	No Acute/Critical Violations Discovered	No Acute/Critical Violations Discovered	Not Public	No Acute/Critical Violations Discovered

Select a BASIC icon above to get details, or view your Complete SMS Profile.

Violation Summary

Violations: 5


Violations	Description	# Violations	# OOS Violations	Violation Severity Weight	BASIC

392.2-SLLTCD	State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other	1	0	5	Unsafe Driving
393.81-H	Horn - Inoperative or defective	1	0	3	Vehicle Maint.
393.95A3	Emergency Equipment - Fire Extinguishers - no visual indicator	1	0	2	Vehicle Maint.
393.9A-LIL	Lighting - Identification lamp(s) inoperative	2	0	2	Vehicle Maint.

Inspection History

Total Inspections: 14


Report			Vehicle			Measure
Inspection Date	Number	State	Plate Number	Plate State	Type	Severity Weight (SW)	Time Weight (TiW)

3/31/2026	FL3977005687	FL	BM97HI	FL	STRAIGHT TRUCK		3
3/3/2026	FL3701007246	FL	DD46KM	FL	STRAIGHT TRUCK		3
12/12/2025	FL3964003885	FL	P8737I	FL	STRAIGHT TRUCK		3
12/2/2025	FL2829000785	FL	RGCI34	FL	STRAIGHT TRUCK		3
Unsafe Driving Violation: 392.2-SLLTCD State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other						5
9/10/2025	FL3226009189	FL	RGCI34	FL	STRAIGHT TRUCK		2
8/21/2025	FL4126001958	FL	BM97HI	FL	STRAIGHT TRUCK		2
Vehicle Maint. Violation: 393.9A-LIL Lighting - Identification lamp(s) inoperative						2
Vehicle Maint. Violation: 393.95A3 Emergency Equipment - Fire Extinguishers - no visual indicator						2
Vehicle Maint. Violation: 393.81-H Horn - Inoperative or defective						3
8/12/2025	FL4965000609	FL	RGCI34	FL	STRAIGHT TRUCK		2
8/4/2025	FL3226009117	FL	BM97HI	FL	STRAIGHT TRUCK		2
7/22/2025	FL4126001869	FL	RGCI34	FL	STRAIGHT TRUCK		2
7/10/2025	FL4258001143	FL	RGCI34	FL	STRAIGHT TRUCK		2
7/2/2025	FL4258001120	FL	RGCI34	FL	STRAIGHT TRUCK		2
6/17/2025	FL3701006518	FL	RGCI34	FL	STRAIGHT TRUCK		2
12/17/2024	FL3701006027	FL	RGCI34	FL	STRAIGHT TRUCK		1
10/16/2024	FL3854003069	FL	BM97HI	FL	STRAIGHT TRUCK		1
Vehicle Maint. Violation: 393.9A-LIL Lighting - Identification lamp(s) inoperative						2

Reviewed-Not Preventable Crash Activity (vehicles involved in crashes)

Total Number of Crashes: 0

This carrier has no crashes to display.

Crashes Included in SMS (vehicles involved in crashes)

Total Number of Crashes: 0

This carrier has no crashes to display.

Investigation Results

Acute/Critical Violations: 0

This carrier has no Acute/Critical violations to display.

Summary of Activities

The summary includes information on the 5 most recent investigations and 24 months of inspections and crash history.

Most Recent Investigation:
Total Inspections: 14
- Total Inspections without Violations used in SMS: 11
- Total Inspections with Violations used in SMS: 3
Total Crashes* : 0

*Crashes listed represent a motor carrier’s involvement in reportable crashes, regardless of the carrier’s or driver’s role in the crash. Continue for details.

Continue for more Crash, Inspection & Investigation Details

Carrier Registration

Carrier Registration Details Subject to General Threshold Update Registration Info

Inspection Selection System

Enforcement Cases

(Six years as of 05/18/2026 updated monthly from FMCSA )

No penalties found

Tools/Resources

SMS Methodology How to Improve Request a Data Review

For U.S. DOT# 4067712

Complete SMS Profile Carrier History Downloads

Summary of Activities (as of 4/24/2026, updated monthly)

The summary includes information on the 5 most recent investigations and 24 months of inspections and crash history.

Most Recent Investigation: None	Total Inspections: 14 Total inspections without violations used in SMS: 11 Total inspections with violations used in SMS: 3	Total Crashes: 0*
	# Insp. OOS Driver Inspections 14 0.0% Vehicle Inspections 2 0.0% Placardable HM Inspections 0 0.0% % Placardable HM Inspections 0.0%	Fatal Crashes 0 Injury Crashes 0 Towaway Crashes 0

*Crashes listed represent a motor carrier’s involvement in reportable crashes, regardless of the carrier’s or driver’s role in the crash. Continue for details.

Downloads

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Average PU × Utilization Factor (as of 4/24/2026, updated monthly)

The SMS normalizes the Unsafe Driving and Crash Indicator BASICs measure by carrier size (i.e., a hybrid power unit and vehicle miles travelled measure) to account for exposure. Carrier size is defined as average power units multiplied by the utilization factor.

2.7 Average PU × Utilization Factor = 2.7 Average Power Units × 1 Utilization Factor

Average Power Units
Utilization Factor

In order to account for changes in a carrier's fleet size during the previous 24 months an average power unit value is used in the calculation to determine a carrier's Unsafe Driving BASIC and Crash Indicator measures.

2.7 Average Power Units = 3 Current Power Units + 3 Power Units 6 Months Ago + 2 Power Units 18 Months Ago
3

The Utilization Factor is a multiplier that adjusted the average PU values based on the utilization in terms of VMT per average PU.

Determine Carrier Segment: Straight
Straight trucks/other vehicles constituting more than 30% of the total PU
U.S. DOT# 4067712 = 66% Straight trucks/other vehicles
Determine VMT per Average Power Unit
3,745 VMT per Average Power Unit = 10,000 VMT From Registration (MCS-150) ÷ 2.7 Average Power Units

Based on Step 1 and 2 calculate the Utilization Factor

Straight Segment
Meets Criteria	VMT per Avgerage PU	Utilization Factor
	< 20,000	1
	20,000 – 60,000	1 = VMT per PU ÷ 20,000
	60,000 – 200,000	3
	> 200,000	1
	No Recent VMT Information	1

Use of SMS Data/Information

FAST Act of 2015:

Readers should not draw conclusions about a carrier's overall safety condition simply based on the data displayed in this system. Unless a motor carrier has received an UNSATISFACTORY safety rating under part 385 of title 49, Code of Federal Regulations, or has otherwise been ordered to discontinue operations by the Federal Motor Carrier Safety Administration, it is authorized to operate on the Nation's roadways.

Safety Measurement System:

The data in the Safety Measurement System (SMS) is performance data used by the Agency and Enforcement Community. A symbol, based on that data, indicates that FMCSA may prioritize a motor carrier for further monitoring.

The symbol is not intended to imply any federal safety rating of the carrier pursuant to 49 USC 31144. Readers should not draw conclusions about a carrier's overall safety condition simply based on the data displayed in this system. Unless a motor carrier in the SMS has received an UNSATISFACTORY safety rating pursuant to 49 CFR Part 385, or has otherwise been ordered to discontinue operations by the FMCSA, it is authorized to operate on the nation's roadways.

Motor carrier safety ratings are available at http://safer.fmcsa.dot.gov and motor carrier licensing and insurance status are available at http://li-public.fmcsa.dot.gov/.