Heavy-Duty Diesel Vehicle Inspection and Maintenance Working Group

The Heavy-Duty Diesel Vehicle Inspection and Maintenance Working Group (HDDVIMWG) meets three to four meetings annually.  All meetings are held via webcast.  See below for past meeting agendas and presentations.  Use filter menu on the right to toggle and select by meeting by year.

For more information about the HDDVIMWG, please contact Jason Brown or Anthony Moffa.

2024

August 15
Agenda Estimating the Emissions Benefits of the Clean Truck Check Program in EMFAC202Y
April 18
Agenda Preliminary Results of Sensor-Based Onboard Sensing Analysis and Reporting from Fleets During a Two-Month Timeframe
November 21
Agenda Large-Scale Remote Sensing Testing in Four Cities in Scotland 2021-2023: Key Findings

2023

August 17
Agenda Clean Truck Check - California Air Resources Board Measurement, Modeling and Impact Studies of Vehicle Exhaust Emission and Fuel Consumption - Texas Southern University
April 20
Agenda Applying Real-World Heavy-Duty Emissions Data to Informa Inventory Development Use of Remote Sensing Data to Assess I/M Program Effectiveness
November 16
Agenda Preliminary Findings on Heavy-Duty Vehicle Tampering: Field Study on Reference and Pre-Commercial Tools

2022

November 17
Agenda Advanced I/M Methods to Identify PN and NOx High Emitters
August 18
Agenda Evaluation of Best Practices for a Full-Scale Program
April 21
Agenda On-Board Sensing, Analysis, and Reporting (OSAR) Update - Dr. Kent Johnson and Mike Allen

2021

November 18
Agenda Proposed Heavy-Duty Inspection and Maintenance Regulation - James Goldstene, Cody Howard - California Air Research Board (CARB)
August 19
Agenda Hager Environmental & Atmospheric Technologies (HEAT) - Emissions Detection and Reporting Update Environmental Protection Agency (EPA) - Stopping Aftermarket Defeat Devices
April 15
Agenda On-Road Measurement of Running Losses by Remote Sensing RSD Data - Rare and Unique Opportunity Being Generated Measurement of Nitrogen Oxides with an Advanced PEMS ready NOx Analyzer
January 29
Agenda Challenges In and Approaches for Conducting Heavy-Duty Truck Activity Data Collection Programs - Carl Fulper

2020

August 20
Agenda Heavy-Duty Diesel Vehicle Inspection and Maintenance Presentation by HEM Data NOx Emissions from Heavy-Duty Vehicles in Urban Areas
April 23
Agenda Massachusetts HDOBD Pilot Program Portable Emissions Acquisition System Update HD IM Working Group
November 20
Agenda Heavy-Duty Roadside Vehicle Enforcement Emissions Survey New Jersey Heavy-Duty Diesel Vehicle Roadside Inspection Program NCTCOG Commercial Vehicle Enforcement Emissions Survey

2019

November 21
Agenda Integrated Vehicles Emissions and Safety Inspection Program Tampering and Aftermarket Defeat Devices
August 15
Agenda and Presentation
April 18
Agenda Tampering and Aftermarket Defeat Devices Developing HD vehicle IM program
January 17
Agenda and Presentation

2018

August 30
Agenda and Presentation
April 11
Agenda and Presentation

Staff Contacts:

Jason Brown
Anthony Moffa