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Nelson Ramirez

  • Active
  • Intrastate Only (Non-Hazmat)
  • Motor Carrier
  • DBA Concrete Masters

Phone (805) 588-9556Lompoc, CA

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Find this carrier by: USDOT 3666836 · MC 1269938 · 805-588-9556 · 8055889556 · Lompoc, CA

Carrier information from FMCSA records. See dates and record coverage. How to verify an FMCSA record.

USDOT
USDOT3666836
MC
1269938
Registered
2021 · 5 yrs
Location
Lompoc, CA
MCS-150 filed
Sep 24, 2025

USDOT registration

Active

Registration status; not operating authority

Authority record

No filing shown

Check current status in Motus

Insurance record

No filing shown

Does not establish uninsured status

Safety rating

Not rated

No safety rating available; not a safety verdict

Overview

The short version and the key numbers.

Nelson Ramirez is an active motor carrier based in Lompoc, CA, registered with FMCSA under USDOT 3666836 and MC 1269938. Phone: (805) 588-9556. It reports 5 power units and 5 drivers on its MCS-150 (Sep 24, 2025). In the last 24 months it had 4 roadside inspections, a 0% vehicle out-of-service rate (national average 22.9%) and no reportable crashes in the available records.

USDOT 3666836 was first registered with FMCSA on Jun 27, 2021 (5 years ago), and its most recent MCS-150 filing is dated Sep 24, 2025. Its vehicles were inspected 4 times on record, most recently on Jun 29, 2026, most often in CA.

5Power units, as filed
5Drivers, as filed
4Inspections (24 mo)
0Crashes recorded (24 mo)
120,000Miles per year (2024)

Equipment on record

Straight TruckInspection

VIN = decoded from the carrier's vehicles · Inspection = seen at roadside inspections · MCS-150 = filed by the carrier

Dates behind this profile

MCS-150 filing
Sep 24, 2025
Registration record changed
Oct 24, 2026
Latest inspection recorded
Jun 29, 2026
Latest crash recorded
Not available
Latest vehicle observation
Jun 29, 2026

Each date applies to its own record. A registration change does not mean every filing changed. An inspection or vehicle observation describes that date, not continuous operation today.

USDOT registration and operating authority are different records. A crash entry records involvement, not a finding of fault. Missing information is not a clean safety record.

Not on file for USDOT 3666836: connected companies.

Company details

Filed identity, officers, contacts and registration details.

Company identity & officers

Company officer
Nelson R Ramirez Agustin
Legal name
Nelson Ramirez
Doing business as
Concrete Masters
Classification
Private (Property)
Registered as
Motor Carrier

Registration & filings

USDOT number
3666836
Docket numbers
MC 1269938 (inactive)
Registered
Jun 27, 2021 (5 yrs)
Last MCS-150
Sep 24, 2025
Usual MCS-150 schedule
June 2027 (see temporary relief below)
Operation
Intrastate Only (Non-Hazmat)
Hazmat, as filed
No
Passenger carrier, as filed
Not available

FMCSA currently provides additional time for biennial updates due on or after June 1, 2026 and suspends USDOT inactivation for those missed updates. The usual schedule above does not establish a violation. Read our update guide and the cited FMCSA notice (guidance checked October 20, 2026).

Carriers in Lompoc, CA

USDOT registrations in Lompoc
367
Currently active
269 (73%)
One-truck operations
286 (78%)
With for-hire authority
76 (21%)
Registered in the last 12 months
15

From FMCSA census records as of Nov 10, 2026. This carrier reports 5 power units against a local average of 2.0.

Find this carrier by

USDOT
3666836
Docket numbers
MC 1269938
Phone
(805) 588-9556805-588-95568055889556
Email
concretemastersnr@gmail.com
Officers
Nelson R Ramirez Agustin
Legal name
Nelson Ramirez
DBA
Concrete Masters
Address
2008 Jalama Ct, Lompoc, CA 93436
Plates inspected under this USDOT
4RT2874 CA, 80302D4 CA, 93813L3 CA, 20546K3 CA

Available registration and contact identifiers. Vehicle identifiers below are a recent sample; open a VIN or plate to see its dated records.

Legitimacy check

A quick screen from public records. A flag is a reason to verify, not proof of wrongdoing.

  • Pass:
    Not on the U.S. sanctions list

    Name does not match the Treasury OFAC list.

  • Pass:
    USDOT registration is active

    FMCSA lists USDOT 3666836 as active.

  • No data:
    No authority filing shown

    This is not a finding of unauthorized operation. Requirements depend on the operation; verify the current registration in Motus.

  • Pass:
    No federal out-of-service orders

    None on record for this USDOT.

  • Pass:
    No prior revocation linked

    No earlier revoked USDOT is linked to this one.

Authority & insurance

Stored filing details and guidance for checking current status.

FMCSA filing records

Authority, insurance and notice records can include earlier filings. Read each recorded status and effective date; a filing alone does not confirm current authority or insurance coverage. Missing records do not establish unauthorized operation or missing insurance.

Amounts are shown exactly as filed, without scaling or currency conversion. Confirm coverage and amounts with the insurer.

Operating authority

0 available records · FMCSA release date: Nov 10, 2026. The release date applies to this collection, not the effective date of every filing.

No matching filings available here. This does not establish that no filing exists.

Insurance filings

0 available records · FMCSA release date: Nov 10, 2026. The release date applies to this collection, not the effective date of every filing.

No matching filings available here. This does not establish that no filing exists.

Suspension and revocation notices

0 available records · FMCSA release date: Nov 10, 2026. The release date applies to this collection, not the effective date of every filing.

No matching filings available here. This does not establish that no filing exists.

Insurance history

0 available records · FMCSA release date: Nov 10, 2026. The release date applies to this collection, not the effective date of every filing.

No matching filings available here. This does not establish that no filing exists.

Earlier FMCSA filing records

These records may omit later filings. Their presence does not establish current authority or coverage. Missing records do not establish that a carrier is unauthorized or uninsured. Check current records in FMCSA Motus, then confirm coverage directly with the insurer. Follow the verification guide and its FMCSA sources. Guidance checked October 20, 2026.

Safety

FMCSA's rating and how this carrier compares with the national average.

Safety rating

Rating
Not rated
Driver inspections (24 mo)
4 (1 out of service)
Vehicle inspections (24 mo)
3 (0 out of service)

Out-of-service rates (24 months)

Vehicle0%
Better than the 22.9% national average (dark marker)
Driver25%
Worse than the 6.3% national average (dark marker)

FMCSA BASICs

FMCSA BASIC scores
CategoryPercentileMeasureInspections with violationAcute / criticalAlert
Unsafe DrivingNot public00NoNot available
Hours-of-ServiceNot public00NoNot available
Driver FitnessNot public31NoNot available
Controlled SubstancesNot public00NoNot available
Vehicle MaintenanceNot public0.751NoNot available

Percentile: 0 is best, 100 is worst. FMCSA flags an alert above its threshold (65–80% depending on category). Some property-carrier percentiles are not public.

Most-cited violations, in plain English
Most-cited violations
CodeWhat it meansTimesOut of service
392.2-SLLSR—30
383.23A2-LCDLN—11
390.21TB2-DOT—10
393.95FEmergency equipment missing or insufficient10

Inspections & crashes

Roadside inspections and reportable crashes in the last 24 months.

4Inspections (24 mo)
8Violations (24 mo)
1Out of service (24 mo)
0Crashes (24 mo)
0Fatal crashes
0Deaths
0Injury crashes

Inspection, violation and out-of-service counts: FMCSA 24-month inspection record, as of Nov 11, 2026.

Most recent

Last inspection
Jun 29, 2026

Latest inspections

Latest roadside inspections
DateInspection IDStateLocationLevelDriver viol. / OOSVehicle viol. / OOSViolations
Jun 29, 202688299917CACaWalk-around (Level 2)1 / 11 / 0
2 violations
  • 383.23A2-LCDLN383.23A2-LCDLN · Driver · Out of service
  • 390.21TB2-DOT390.21TB2-DOT · Vehicle
May 7, 202687804427CACaWalk-around (Level 2)0 / 02 / 0
2 violations
  • 392.2-SLLSR392.2-SLLSR · Vehicle
  • Emergency equipment missing or insufficient393.95F · Vehicle
Feb 5, 202686981233CASr-246 At MeadowvaleDriver only (Level 3)0 / 02 / 0
2 violations
  • 392.2-SLLSR392.2-SLLSR · Vehicle
  • 392.2-SLLSR392.2-SLLSR · Vehicle
Nov 10, 202586304785CALompocWalk-around (Level 2)0 / 00 / 0No detailed violation records available

Browse all available inspection records

A roadside out-of-service finding applies to the inspected driver or vehicle; it is different from a federal order against the carrier. Crash involvement does not determine fault or preventability. Counts cover the stated reporting period, not the carrier’s entire history.

Where its vehicles were inspected

Roadside inspections by state
StateInspectionsWith OOS
CA · California41

The states where FMCSA recorded roadside inspections for this USDOT. A rough picture of where the fleet runs, not a list of lanes.

Inspections and crashes by year

Inspections and crashes by year
YearInspectionsViolationsOut of serviceCrashes
20263610
20251200

Fleet & drivers

Filed fleet and driver counts, cargo types, and vehicles observed at inspections.

Vehicles filed on the MCS-150

Vehicles filed on the MCS-150
VehicleOwnedTerm leasedTrip leased
Trucks500

Drivers

Total drivers
5
CDL drivers
0
Interstate, over 100 mi
0
Interstate, within 100 mi
0
Intrastate, over 100 mi
0
Intrastate, within 100 mi
5
Leased drivers / month
Not available

Operations

Power units
5
Trucks
5
Buses
0
Annual miles
120,000 (2024)
Seen at inspections
3 trucks · 1 trailer

Vehicles inspected under this USDOT

3Power units / trucks inspected
1Trailers inspected
Most recently inspected vehicles
VINYearMake & modelTypePlateInspectionsLast seenViolations / OOS
1W9BT2525HL555691—WaltnSemi-Trailer4RT2874 CA1Jun 29, 20260 / 0
1FD0W4GT4REE52812—FordStraight Truck80302D4 CA1Jun 29, 20261 / 1
1HTKHPVK5MH6213762021GM Gm515Straight Truck93813L3 CA1May 7, 20261 / 0
1FDNF6DE4NDF048492022Ford F-650Straight Truck20546K3 CA2Feb 5, 20260 / 0

Vehicles recorded at roadside inspections under this USDOT (the carrier operated them; this is not a record of ownership). Open a VIN or plate for its dated carrier associations and available history. Plates can change or be reassigned. Vehicle details reflect filed records and available VIN decoding; these observations are not a complete fleet or ownership history.

Browse all available vehicle records

Equipment evidence

  • Straight TruckInspection 3 straight trucks recorded at roadside inspections

Cargo carried, as filed

General FreightBuilding MaterialsLivestockFarm SuppliesConstruction

Changes & history

Dated changes, earlier values and filing history for this registration.

Timeline of this registration

  1. Most recent vehicle recorded at a roadside inspection.
  2. Most recent roadside inspection on file.
  3. First vehicle recorded at a roadside inspection under this USDOT.
  4. Earliest roadside inspection on file.
  5. MCS-150 filing on record.
  6. Registered with FMCSA as USDOT 3666836.

Dates come from FMCSA filings and inspection records as filed; a filing date is when FMCSA recorded it, not when an event happened on the road.

MCS-150 filings on record

  1. MCS-150 filed

Registration

First registered with FMCSA
Jun 27, 2021
Last MCS-150 update
Sep 24, 2025

Questions & answers

Quick answers, written from this carrier's FMCSA record.

Is Nelson Ramirez an active carrier?

The available FMCSA record lists USDOT 3666836 as active. Registration is separate from operating authority and insurance coverage.

What is Nelson Ramirez's USDOT and MC number?

USDOT 3666836; docket number MC 1269938.

How do I contact Nelson Ramirez?

As filed with FMCSA: phone (805) 588-9556; email concretemastersnr@gmail.com; address 2008 Jalama Ct, Lompoc, CA 93436.

What is Nelson Ramirez's safety rating?

No FMCSA safety rating is available here. Not rated does not mean safe or unsafe.

How many trucks and drivers does Nelson Ramirez have?

Power units: 5; drivers: 5, as filed on its MCS-150 (Sep 24, 2025).

What does Nelson Ramirez haul?

Its FMCSA filing lists these cargo types: general freight, building materials, livestock, farm supplies, construction.

What equipment does Nelson Ramirez operate?

On government records: Straight Truck (3 straight trucks recorded at roadside inspections).

How many inspections and crashes has Nelson Ramirez had?

Inspections: 4; crashes recorded: 0, in the available 24-month records.

What is the usual MCS-150 update schedule for Nelson Ramirez?

The usual USDOT-digit schedule gives June 2027. The latest filing stored here is Sep 24, 2025. FMCSA currently gives extra time for biennial updates due on or after June 1, 2026 and has suspended inactivation for those missed updates. This calculated date is not a finding of noncompliance. Check the linked FMCSA notice for changes.

Reviews

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GoodCheck thisProblemNo data or not applicable Carrier information from FMCSA records. Filing dates and reporting periods are shown with the relevant records.

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