Reducing Greenhouse Gas Emissions from Transportation

Transportation is now the highest source and greenhouse gas emissions (GHG) in Colorado. The state has ambitious science-based targets to help address climate change: 26% reduction in GHGs by 2025, 50% by 2030% and 90% by 2050 from 2005 levels. These are outlined in the state Greenhouse Gas Pollution Reduction Roadmap. The state is working in a variety of ways to reduce GHG emissions from the transportation sector.


Clean Trucking Strategy Study Released

(Colorado Clean Trucking Study) (Stakeholder meeting info)

The Colorado Energy Office (CEO), the Colorado Department of Transportation (CDOT) and the Colorado Department of Public Health & Environment, Air Pollution Control Division (APCD) recently released the Colorado Medium- and Heavy-Duty Vehicle Study, a study on strategies to encourage cleaner trucks in Colorado. The study looks at the existing medium and heavy-duty vehicles in the state as well as opportunities and challenges associated with a transition to zero-emission vehicles (ZEV) that could reduce negative climate impacts and improve air quality. The study and upcoming public input opportunities will inform the development of a Colorado Clean Truck Strategy. To learn more or sign up for a stakeholder meeting, visit CDOT’s website.


Greenhouse Gas Pollution Standard

(Rule and Hearing Details

One of the key recommendations stemming from the Governor’s Greenhouse Gas (GHG) Roadmap is the adoption of a new GHG Pollution Standard for the transportation sector, which would set GHG budgets for transportation plans. This will help reduce GHG emissions resulting from vehicle travel across the state. This rule is currently being proposed by the Colorado Department of Transportation (CDOT) and will be considered by the state’s Transportation Commission. More information is available on the CDOT website.

Vehicle Emission Inspection Program

(Fact Sheet) (Información General)

The Air Quality Control Commission adopted a rule that included updates to Colorado’s vehicle inspection program to make it more effective in protecting air quality in the state. More information on the Vehicle Emission Inspection Program is available here.

Employee Traffic Reduction Program (ETRP)

The Air Pollution Control Division is working to develop the state’s voluntary Employee Traffic Reduction Program (ETRP). This program will help address GHG and other emissions by encouraging businesses and employers to offer a variety of exciting options that make it easier for employees to reduce their single-occupancy vehicle (SOV) commuting. ETRP will benefit employees, improve employee recruitment and retention, and help address climate change and ozone pollution. 

One of the easiest, least-costly, and most impactful ways employers can reduce SOV commuting, and increase employee recruitment, retention and productivity, is to offer telework (work from home) and/or flexible or compressed work schedules. The Way to Go program offers assistance to employers in the Denver Metro/Northern Front Range area of Colorado in implementing telework and/or flexible work schedules for employees.     

Denver Metro/Northern Front Range businesses/employers can also take advantage of Commuter Consultants through the Way to Go program or regional Transportation Management Associations (TMAs) in the area to help employers develop customized ETRP plans to reduce SOV commuting.  Please visit Way to Go's Employer Services web page or its TMA Commuter Consultants web page for more information on this free service.  

Check back for more details/resources for voluntary ETRP.