Near-Zero-Emissions (NZE)

LNG/CNG Technology

We test every near-zero-emission class 8 tractor available and have identified the precise needs of our operations down to the last mile to the last turn-around minute. LNG Near-Zero-Emission (NZE) trucks meet these and take us a giant leap toward our commitment to a 100% NZE & ZE Fleet by 2020.

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.

Operating Goals

  • Servicing the Los Angeles and Long Beach Ports 6 days a week
  • Class 8 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

State-of-the-Art Natural Gas Engines

Cummins Westport


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.

  • Cummins Westport ISL G Near Zero (NZ) emission engine
  • CNG and Battery Electric Hybrid Engine
  • 250 Mile Range - Excellent solution for drayage and regional hauls.

Learn where RNG comes from [VIDEO].

Real World Application of the ISX12N [NEWS].

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

The Latest in Near-Zero News

Cummins Westport LNG Trucks

New Clean Engine Technology Servicing The Ports Of Los Angeles Or Long Beach

Total Transportation Services (TTSI), one of the nation’s leading port drayage companies, has taken delivery of 20 Volvo and 20…
Near Zero Emissions Trucks are in!

The Near-Zero-Emissions Trucks (NZE) are here!

The Cummins CNG/LNG engine uses 90% fewer NOx emissions than the current North American EPA standard. These trucks use renewable…

Near-Zero Trucks are almost here!

We received a wonderful note from Clean Energy Vice President Greg Roche today about taking delivery of 40 brand new…
Where does RNG come from?

Where does Renewable Natural Gas come from?

TTSI recently ordered 40 Cummins Westport Renewable Natural Gas (RNG) Near-Zero Emissions (NZE) trucks for our drayage operations. Watch this…

About Us

We are an innovative, asset-based logistics provider driven by California Compliance and Sustainability.


  • 18735 South Ferris Place
    Rancho Dominguez, CA 90220
  • Tel: (310) 816-0260
    Fax: (310) 984-3195

Contact Us

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