LNG/CNG Technology

Our NZE Natural Gas engines use renewable fuels and have the power to get the job done. They are the next step to 100% zero-emissions.

We rigorously test every near-zero-emission class 8 tractor available to ensure it meets our rigorous operational needs - right down to the last mile and the last turn-around minute. Natural Gas and Natural Gas Hybrid Near-Zero-Emission (NZE) trucks meet these and take us a giant leap toward our commitment to a 100% NZE & ZE Fleet.

Near-Zero Emission Truck Benefits

Kenworth 9L CNG Electric Hybrid
  • Fuel is more economical than diesel (Domestic/Renewable)
  • Cheaper operating cost/mile than diesel
  • Low NOx Emissions
  • Driver Acceptance

Operating Goals

Cummins Westport LNG Trucks
  • Servicing the Los Angeles and Long Beach Ports 6 days a week
  • Class 8 Near Zero Emission Trucks
  • Power to transport 36 to 39K loads
  • Able to travel 6% Grade at minimal 30 to 35 MPH
  • Minimal fueling time & available locations

The First 48


On May 22, 2008, TTSI took delivery of the first 8 Clean LNG Trucks. By July 2011, TTSI had purchased 49 LNG Trucks.

State-of-the-Art Natural Gas Engine Fleet

Cummins Westport

Cummins Westport ISL G Near Zero (NZ) emission engine has 90% fewer NOx emissions than the current North American EPA standard. These trucks use renewal natural gas (RNG) - from organic waste and refined to met emissions standards, and have a 250 mile range. They are an excellent solution for drayage and regional hauls, and we've added them to our green fleet. TTSI is also testing Westport's CNG and Battery Electric Hybrid Engines.


State-of-the-Art Battery Electric Hybrids

US Hybrid

  • LNG/CNG Plug-in Hybrid Electric Powertrain
  • Enabling Near Zero Goods Movement
  • Double Power, Torque and Fuel Economy to Diesel
  • 80% less NOx


Near Zero Emission Kenworth T680

Kenworth's T680 Prototype is a hybrid propulsion system using battery-electric and near-zero-emission CNG (Compressed Natural Gas). These range-extended electric trucks can operate in zero-emissions mode on batteries for 30 miles. The batteries recharge while driving using the onboard generator powered by the near-zero-emissions natural gas engine.


Near Zero Kenworth Hybrid CNG/Battery Electric

Kenworth T680 Prototype is a Hybrid Emission Cargo Transport (HECT). Funded in part by the Office of Energy Efficiency and Renewable Energy (EERE), the U.S. Department of Energy and the South Coast Air Quality Management District.

Our trucks are state-of-the-art, featuring Westport Innovation's High-Pressure Direct Injection (HDPI) technology.

Near-Zero News


TTSI Tests Every ZEV Available

The extensive fleet owner article below discusses ZEV from the adopter (TTSI) perspective, the supplier's perspective, the resulting tests in…

TTSI President Vic La Rosa Speaks on Hydrogen Fuel Cell Vehicles at ACT EXPO Conference

At the Advanced Clean Transportation EXPO (ACT EXPO) conference, Total Transportation Services (TTSI) president Vic La Rosa will speak at the Hydrogen…

TTSI Collaborates with Nikola Corporation

Total Transportation Services (TTSI) collaborates with Nikola Corporation to expedite zero-emission transportation at the Port of Los Angeles/Long Beach. TTSI…

TTSI will add 15 Compressed Natural Gas (CNG) trucks to their drayage fleet

Total Transportation Services (TTSI) will add 15 Compressed Natural Gas (CNG) trucks to our drayage fleet, thanks to the $1.5…

About Us

Total Transportation Services (TTSI) is an innovative, asset-based logistics provider driven by Sustainability, Safety, and California Compliance. We are committed to providing Quality in Everything We Do.

TTSI is supported by a Dedicated Leadership Team with Deep Industry Experience, Strong Partnerships, and backed by Numerous Awards.


  • 4811 Airport Plaza Drive
    Fourth Floor
    Long Beach, CA 90815

  • Toll free: (833) 744-TTSI (8874)
    Tel: (310) 816-0260
    Fax: (310) 984-3195

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