ZL CONSTRUCTION CORPORATION

USDOT 3172028 • DBA: ZLC CORP • 1027 DETROIT AVE STE A, CONCORD, CA, 94518

ACTIVE

Authority:None on file

Insurance:None on file

BOC-3:Not on file

Safety Rating:Not rated

MCS-150:Never updated

OOS Orders:1 active

Overview

Company profile from FMCSA Census File

USDOT

3,172,028

Status

ACTIVE

Operation

Intrastate (Non-Hazmat)

State

California

Phone

9258995704

[email protected]

Power Units (MCS-150)

Drivers (MCS-150)

MCS-150 Mileage

38,047

Physical Address

1027 DETROIT AVE STE A, CONCORD, CA, 94518

Mailing Address

1027 DETROIT AVE STE C, CONCORD, CA, 94518

Contact

Phone: 9258995704

Email: [email protected]

Risk Signals1 flagged

HIGH

1 active Out-of-Service order

Active OOS orders prevent this carrier from operating until rescinded. See the OOS Orders table for details.

Signals are auto-detected from FMCSA public records. This is not a regulatory determination.

Authority & Insurance

Operating authority, insurance filings, and BOC-3 status

Active Authority

Revoked / Inactive

Authority Types

Insurance Policies

None on file

BOC-3 Filing

Not on file

Operating Authority

fmcsa-authhistApr 5, 2026

No records found

No insurance filings found for this carrier in FMCSA records.

Check FMCSA SAFER for current insurance status

Out-of-Service Orders (1)

fmcsa-oos-orders

Out-of-Service Orders (1)
OOS Date	Reason	Status	Rescinded
Oct 3, 2020	New Entrant Revoked - Refusal of Audit/No Contact	ACTIVE	Jul 26, 2021

Safety & Inspections

SMS BASIC scores, inspection history, and out-of-service rates

SMS BASIC Scores

Driver Fitness

Drugs / Alcohol

Hours of Service

Unsafe Driving

Vehicle Maintenance

Higher percentile = worse safety performance relative to peers. Scores at or above 75% trigger FMCSA alerts.

Inspections

Violations

6 OOS

Vehicle OOS %

17.4%

Driver OOS %

4.3%

Power Units (MCS-150)

Drivers (MCS-150)

Crash Records

Inspection Activity (24 months)

Monthly inspection counts with OOS months highlighted. Hover bars for details.

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

Clean monthMonth with OOSBased on latest 23 of 23 inspection records

Inspection Activity Map

1 state • 23 inspections

None Low Medium High🚛 Home base

Violation Summary (38 violations from 23 inspections)

fmcsa-inspection-file

Violation Summary (38 violations from 23 inspections)
Code	Description	# Violations	# OOS	Severity Wt	BASIC
FMCSR:392.2	Operating a CMV while ill or fatigued	12	0	8	Unsafe Driving
FMCSR:392.2-SLLSOA	Operating a CMV while ill or fatigued	5	0	8	Unsafe Driving
FMCSR:393.60(d)	Glazing/window obstructions	3	0	4	Vehicle Maintenance
FMCSR:396.3(a)(1)	Inspection/repair/maintenance - general	3	1	5	Vehicle Maintenance
FMCSR:392.2-SLLSR	Operating a CMV while ill or fatigued	2	0	8	Unsafe Driving
FMCSR:392.2-SLLSIV	Operating a CMV while ill or fatigued	1	0	8	Unsafe Driving
FMCSR:392.2-SLLTCD	Operating a CMV while ill or fatigued	1	0	8	Unsafe Driving
FMCSR:393.75C-TAOTD-LT2/32	Tire tread depth insufficient (other axles)	1	0	5	Vehicle Maintenance
FMCSR:393.47E	Slack adjuster defective	1	0	7	Vehicle Maintenance
FMCSR:393.53B	Steering system components worn	1	0	7	Vehicle Maintenance
FMCSR:396.3A1-BOS	BRAKES OUT OF SERVICE: The number of defective brakes is equal to or greater than 20 percent of the service brakes on the vehicle or combination	1	1	—	Vehicle Maintenance
FMCSR:393.83(g)	Exhaust - Discharging at a point forward or directly below the driver or sleeper compartment	1	1	—	Vehicle Maintenance
FMCSR:177.834(a)	General loading/unloading hazmat	1	1	6	Hazardous Materials
FMCSR:383.91(a)	No CDL endorsement	1	1	8	Driver Fitness
FMCSR:393.45(b)(2)	Brake tubing/hoses inadequate	1	1	7	Vehicle Maintenance
FMCSR:393.53(b)	Steering system components worn	1	0	7	Vehicle Maintenance
FMCSR:393.205(c)	Wheel fasteners loose and/or missing	1	0	—	Vehicle Maintenance
FMCSR:393.30	Battery improperly secured	1	0	3	Vehicle Maintenance

Peer Context

This carrier vs national averages. Lower is better for all metrics.

Vehicle OOS Rate

17.4%vs nat'l 23.4%

-6.0 pts below avg

Driver OOS Rate

4.3%vs nat'l 6.7%

-2.4 pts below avg

Violations / Inspection

1.65vs nat'l 1.80

-0.15 below avg

National averages: vehicle OOS 23.4%, driver OOS 6.7%, violations per inspection ~1.8. Based on FMCSA MCSAP program data.

Inspection History (23 inspections)

fmcsa-inspectionsApr 5, 2026

Inspection History (23 inspections)
Date	Report #	Station	State	Level	Vehicle	Violations	Top Codes	OOS
Feb 5, 2026	86981772	MISSION GRADE IF	CA	Level 3	FRHT TRUCK TRACTOR	0	—	No
Nov 4, 2025	86248395	N/OF RANCHO VENTUR., CUPERTINO	CA	Level 2	PTRB STRAIGHT TRUCK	1	392.2-SLLSOA	No
Nov 3, 2025	86227858	SB I-680 WALNUT CREEK SCALES	CA	Level 1	RAM STRAIGHT TRUCK	2	392.2-SLLSOA, 392.2-SLLSIV	No
Jul 31, 2025	85661199	WB LIVERMORE SCALES	CA	Level 3	GMC STRAIGHT TRUCK	0	—	No
Mar 6, 2025	84064076	I-680 NB NO MISSION GRADE CVEF	CA	Level 3	GMC STRAIGHT TRUCK	1	392.2-SLLTCD	No
Jan 31, 2025	83753923	I-80 W/B EAST OF TI	CA	Level 2	GMC STRAIGHT TRUCK	2	392.2-SLLSOA, 393.75C-TAOTD-LT2/32	No
Jan 20, 2025	83711642	Roadside	CA	Level 3	PTRB STRAIGHT TRUCK	2	392.2-SLLSR, 392.2-SLLSOA	No
Dec 9, 2024	83357766	Roadside	CA	Level 2	RAM STRAIGHT TRUCK	2	392.2-SLLSR, 392.2-SLLSOA	No
Nov 1, 2024	83086672	GILROY IF	CA	Level 1	PTRB STRAIGHT TRUCK	0	—	No
Oct 31, 2024	83076922	GILROY IF	CA	Level 1	PTRB STRAIGHT TRUCK	3	393.47E, 393.53B, 396.3A1-BOS	Yes
Sep 16, 2024	82675082	N/OF SR-237, SAN JOSE	CA	Level 2	GMC STRAIGHT TRUCK	1	393.83(g)	Yes
Sep 5, 2024	82599021	CORDELIA IF	CA	Level 2	GMC STRAIGHT TRUCK	0	—	No
Sep 3, 2024	82578226	I-680 NB K PLATFORM SCALES	CA	Level 3	RAM STRAIGHT TRUCK	0	—	No
Aug 29, 2024	82541756	N/OF SR-237, SAN JOSE	CA	Level 1	GMC STRAIGHT TRUCK	1	392.2	No
Aug 29, 2024	82542858	MISSION GRADE IF	CA	Level 1	GMC STRAIGHT TRUCK	0	—	No
Aug 5, 2024	82320351	WALNUT CREEK SCALES	CA	Level 2	RAM STRAIGHT TRUCK	6	392.2, 393.60(d), 177.834(a)	Yes
Jun 19, 2024	81936066	NIMITZ IF	CA	Level 2	PTRB STRAIGHT TRUCK	1	392.2	No
Jun 17, 2024	81928045	NIMITZ IF	CA	Level 1	PTRB STRAIGHT TRUCK	5	393.60(d), 393.45(b)(2), 392.2	Yes
Mar 25, 2024	81202699	Roadside	CA	Level 2	GMC STRAIGHT TRUCK	3	392.2, 393.60(d)	No
Mar 7, 2024	81052570	ST VINCENT	CA	Level 2	PTRB STRAIGHT TRUCK	3	392.2, 393.205(c)	No
Aug 15, 2023	79425174	MISSION GRADE IF	CA	Level 1	ISU STRAIGHT TRUCK	2	392.2, 393.30	No
Jun 16, 2023	78918712	SB 680 WALNUT CREEK SCALES	CA	Level 2	FORD STRAIGHT TRUCK	1	392.2	No
Apr 19, 2023	78408547	CORDELIA IF	CA	Level 1	PTRB STRAIGHT TRUCK	2	396.3(a)(1)	No