Get a freight quote

Approved carriers respond fast.

Approved carriers
Reliable drivers
Fast & easy
Anywhere in the US
Oversized loads
Reefer, flatbed & dry van
Insured cargo
Your info stays private

Freight Carrier · San Luis Obispo, CA

GREENFIELD TRANSPORT

Name: GREENFIELD TRANSPORT
Address: 804 O'CONNOR WAY, SAN LUIS OBISPO, CA, 93405, US
Telephone: (805) 545-8477

804 O'CONNOR WAY · San Luis Obispo, CA 93405

Authorized: Property

(805) 545-8477 Tap to call

MC #439893
USDOT #858640 USDOT Active

3
Power Units
2
Drivers
Carrier
Entity Type

About this carrier

GREENFIELD TRANSPORT is a San Luis Obispo, CA freight carrier that is authorized for property in the state of California. This company has 3 truck(s) in their fleet and 2 truck drivers. Their motor carrier number is MC-439893 and their USDOT number is 858640.

Sourced from FMCSA SAFER · last filed 12/02/2025 · last updated May 22, 2026.

Carrier Details

Legal Name ROBERT R NEWBY
Operating Status AUTHORIZED FOR Property
MCS-150 Filed 12/02/2025
MCS-150 Mileage 60,000 (2023)

Authority & Operations

Operation Classification

Authorized for Hire

Carrier Operation

Interstate

Cargo Authorized

General Freight
Metal Sheets, Coils, Rolls
Motor Vehicles
Logs, Poles, Beams, Lumber
Building Materials
Machinery, Large Objects
Livestock
Grain, Feed, Hay
Agricultural / Farm Supplies
Construction
Water Well

Operating Territory

Map of states where this carrier has roadside inspections

Inspection activity Inspected in 1 state over the past 24 months: CA (2). Home base: San Luis Obispo, California.

Safety Record

Updated 2 days ago

Crashes (24 mo)

0
Fatal
0
Injury
0
Tow
0
Total

Behavior Categories (BASICs)

CategoryMeasureViolations Unsafe Driving 0 0 Crash Indicator Not Public — Hours of Service 0 0 Vehicle Maintenance 0 0 Drugs / Alcohol 0 0 Hazmat Not Public — Driver Fitness 0 0

Inspection Summary

2
Total
2
Clean
0
With violations

24-month window ending May 15, 2026

Violations Cited

No violations cited in the last 24 months.

Locations

Physical Address

GREENFIELD TRANSPORT
804 O'CONNOR WAY
SAN LUIS OBISPO, CA 93405

Mailing Address

ROBERT R NEWBY
PO BOX 12433
SAN LUIS OBISPO, CA 93406

Location on Map

Google Directions Apple Maps Waze OpenStreetMap

Latest from Carrier Atlas Freight Intelligence

Compliance & FMCSA

Hazmat Carriers Rack Up Thousands of English Proficiency Violations

FMCSA inspection data shows 200 carriers hauling placarded hazmat have been cited more than 3,000 times for drivers unable to read signs or communicate with officers. One Mexica…

Jun 17, 2026

Equipment & OEM

Class 8 Retail Sales Drop Year Over Year Despite May Uptick

New heavy-duty truck sales improved month-to-month in May 2026 but remain below prior-year levels as fleets hold back orders.

Jun 17, 2026

Fuel & Energy

Oil Falls Back to $80: Brent Down 3.2%, U.S. Crude at $78.72

Brent crude dropped 3.2% to $80.50 per barrel June 16, while U.S. benchmark crude fell $2.03 to $78.72. The slide continues a two-week retreat from the $98 peak.

Jun 17, 2026

Driver Jobs & Hiring

Driver turnover survey is not an FMCSA compliance story

Spring 2026 turnover data carries no docket, no CSA change, no audit trigger. What small fleets must know about retention versus regulation.

Jun 17, 2026

Driver Jobs & Hiring

Driver retention is not an FMCSA compliance story

Platform Science's 2026 Driver Experience Report shows 52% of drivers value technology, but no docket, no CSA change, no audit trigger ties retention to federal rules.

Jun 17, 2026

Carrier Business

177-Truck Border Carrier Liquidates as Freight Bankruptcies Spread

Triple RRR Carriers, GLS Materials, and four other trucking companies filed Chapter 7 or 11 in the past 10 days. Logistics firms cut 548 jobs.

Jun 17, 2026

Equipment & OEM

Mack and Volvo Issue Do-Not-Drive Recall for Wheel-Off Risk

Owners of 2026-2027 Mack Anthem, Granite, Pinnacle, Pioneer and Volvo VAH, VN, VHD, VNL, VNR units told not to operate trucks until remedy is performed.

Jun 16, 2026

Equipment & OEM

Medium-Duty Truck Sales Stall as Buyers Hold Back Orders

ACT Research reports medium-duty buyers are delaying purchases in June 2026, mirroring the order hesitation seen in Class 8.

Jun 16, 2026

Compliance & FMCSA

Unlicensed Truckers Cited at Roadside as Non-Domiciled CDL Access Tightens

Law enforcement officers are pulling more drivers without valid credentials as states revoke non-domiciled CDLs and FMCSA narrows eligibility.

Jun 16, 2026

Driver Life on the Road

Detention hits 40% of loads and costs the industry $15 billion a year

ATRI's 2024 study shows detention occurs on nearly 40% of all stops, 56% for reefer loads. The industry loses 135 million hours a year, and most fleets collect less than the tru…

Jun 16, 2026

Broker Fraud & Vetting

Phishing Email Gave Thieves $1.7M Condom Load Using Carrier's Identity

Criminals used a phishing email to compromise a legitimate trucking company's credentials, then picked up a 103,000-unit shipment bound for Walmart and rerouted it to the Bronx.…

Jun 16, 2026

Fuel & Energy

Oil Falls $4.37 on Iran Deal, Diesel Relief Coming for Fleets

Brent crude dropped to $82.96 per barrel June 15 as a tentative deal to end the Iran war took shape. What the pullback means for fuel costs.

Jun 15, 2026