Technology & Maintenance Council


The purpose of the Technology & Maintenance Council is to improve transport equipment, its maintenance and maintenance management. The Council develops Recommended Engineering and Maintenance Practices that are voluntarily adopted by fleets, OEMs and components suppliers.

The Council also conducts industry surveys and promotes the voluntary cooperation among designers and manufacturers of transport equipment and those who specify, purchase and manage such equipment.

Who We Support

The Technology and Maintenance Council supports the ATA technology & Engineering Policy Committee with research, analysis and policy development.



Future TMC Events

September 16, 2017

Here is a listng of future TMC events, starting with TMC's 2018 Annual Meeting, March 5-8, at the Georgia World…

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104 Technicians Qualify for TMCSuperTech Finals

Today, American Trucking Associations’ Technology and Maintenance Council announced that 104 competitors have moved on to the finals of the National Technician Skills Competition – TMCSuperTech.

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Reports & Documents

Future Truck Information Reports

TMC IR 2015-3, Exploring the Potential for 48-Volt Commercial Vehicle Electrical Systems

Forty-eight volt electrical systems represent a great potential to save fuel and reduce greenhouse gas emissions. Idle stop-start technology can help save fuel while the vehicle is motionless, and torque assist can also be supplied to the engine for launch and low-speed momentary acceleration. Increased energy storage and recapture of brake energy is also possible through 48-volt electrical/electronic (E/E) technology, further improving on overall efficiency. In addition, there are other possibilities with the use of a 48-volt supply that would not be possible with a 12-volt battery in in a commercial motor vehicle (CMV), such as electronically controlled air-conditioning (A/C) compressors and fully electric power steering.

December 17, 2015

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Future Truck Position Papers

Future Truck Position Paper: 2017-1, Future Energy Sources for Commercial Vehicles

Today’s heavy-duty truck manufacturers are increasing their focus on more efficient management of all types of energy in commercial vehicle (e.g., combination vehicle, straight truck, etc.). This position paper explores industry efforts at attaining alternate energy sources and what steps should be taken to implement such alternatives successfully for commercial vehicle operations. TMC believes the next step in vehicle energy conservation is to investigate the usage of the fuel energy once it is burned and develop strategies for efficient recovery and subsequent usage where possible and feasible. At the same time, this effort should include using ‘free’ energy, specifically solar, as part of the overall energy mapping process. The time is now to begin laying out an electrical system architecture that will accommodate the energy efficient tractor and trailer of the future. TMC's study groups and task forces should play a leading rolle in developing this architecture, working with other industry groups and organizations as needed.

January 18, 2017

TMC FT Position Paper 2016-1: Dynamic Adjustment of ‘Wheel Rotations Per Mile’ Via GPS-ECU Comparison

The ability to refine wheel-based road speed calculations through the adjustment of wheel rotations per mile via global positioning satellite (GPS) input is a desirable feature that does not yet exist for heavy-duty commerical motor vehicles (CMVs). This technology, which would dynamically adjust rotations per mile to account for tire wear, could improve speedometer accuracy and fuel economy reporting (as reported by the engine electronic control unit or (ECU). It also has the potential, if wheel-end sensors are employed, to report current remaining tread depth and the need for tire replacement due to wear. This technology would compare vehicle distance travelled as measured by both a GPS-enabled device and the vehicle ECU, and should a reasonably significant difference exist, the ECU’s “wheel rotations per mile” parameter would be automatically adjusted accordingly, to compensate for tire wear.

August 02, 2016

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Study Group Information Reports

TMC IR 2017-2, Compliance and Certification of Electronic Logging Devices

S.12 Onboard Vehicle Electronics Information Report: 2017-2, Compliance and Certification of Electronic Logging Devices This document provides motor carriers and owner-operators guidance on what constitutes a compliant electronic logging device (ELD) system. This paper is not meant to cover all aspects of the ELD certification process, but is intended to provide sufficient detail such that fleets and owner-operators using this document can determine what is an acceptable level of supplier compliance with the Federal Motor Carrier Safety Adminstration’s (FMCSA) new ELD mandate.

June 30, 2017

TMC IR 2016-1, Battery Electric Vehicles in Light- & Medium-Duty and Specialty Truck Commercial Applications

A Class 1-6 commercial motor vehicle (CMV) powered solely by electricity is much different than a CMV powered by an internal combustion engine (ICE) or by hybrid electric vehicle (HEV) design. A battery electric vehicle (BEV) design includes storage only for its onboard battery capacity, not fossil fuel. The battery capacity has a direct impact on vehicle range and powered features. The electrical propulsion system requires a high voltage supply and significant current draw that dictates the capability and therefore the battery capacity. Unlike electric cars that can transport a relatively light load within a limited range, a commercial application relates to the operator’s ability to fulfill a customer’s expectations. Commercial BEVs have balanced design considerations that involve total vehicle cost, weight, energy storage capability, and lifecycle value. The primary consideration is the battery in which lithium-ion (Li-ion) technology has grown to be most popular for its design. Other considerations rely on the unloaded weight amount the CMV has compared to its maximum load weight amount dependent on distance, geographical terrain, duty cycle and any other specific industry segments that test its capabilities. End users must understand their own applications before changing from ICE design or HEV fleet units to fully electric.

June 01, 2016

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Radio Shows

Awards & Scholarships

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American Trucking Associations is the largest national trade association for the trucking industry. Through a federation of 50 affiliated state trucking associations and industry-related conferences and councils, ATA is the voice of the industry America depends on most to move our nation’s freight. Trucking Moves America Forward