TCI's Regional Policy Design Process 2019

Updated August 5, 2019 

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About TCI's regional low-carbon transportation policy design process 

Transportation and Climate Initiative (TCI) states are developing a regional policy for low-carbon transportation following the December 18, 2018 statement by nine states and Washington DC committing to:

“…design a regional low-carbon transportation policy proposal that would cap and reduce carbon emissions from the combustion of transportation fuels through a cap-and-invest program or other pricing mechanism… [and]… to complete the policy development process within one year, after which each jurisdiction will decide whether to adopt and implement the policy.”

TCI jurisdictions have designed a workplan with the goal of developing a policy that accelerates the transition to a low-carbon transportation future and delivers a better, cleaner, more resilient transportation system that benefits all our communities, particularly those underserved by current transportation options and disproportionately burdened by pollution, while making significant reductions in greenhouse gases and other harmful air pollution across the region. With ongoing facilitation support from the Georgetown Climate Center, TCI states are planning and beginning to implement a range of activities to ensure that the final proposed policy reflects further input from stakeholders, rigorous technical analysis, and consultation with leading experts.

Public workshops 

TCI has hosted three regional workshops this year to explore issues that will be central to the design of a proposed regional low-carbon transportation policy. These events are important opportunities for TCI jurisdictions to consult with experts, businesses, residents, and communities who might inform the policy. In-person workshops are supplemented by topical webinars and ongoing state outreach to constituents within their respective jurisdictions.

Technical Workshop: Regional Cap and Invest for Transportation, Key Design Elements
Tuesday, April 30, 2019
Boston, Massachusetts

Topics covered at this workshop included:

  • Cost Containment and Program Ambition
  • Modeling Strategies
  • Monitoring and Reporting
  • Fuel Coverage and Compliance
Wednesday, May 15, 2019
Newark, New Jersey
Topics covered at this workshop included:
  • Transportation priorities in underserved and disproportionately affected communities;
  • Reducing transportation emissions;
  • Ways to foster transportation equity in rural, suburban, and urban communities;
  • Ways a regional low-carbon transportation policy can complement other equity-related efforts.

Low-Carbon Transportation Investments, Strategies, and Outcomes
Tuesday, July 30, 2019
Baltimore, Maryland

At this workshop, officials from TCI jurisdictions:

  • Provided public updates regarding the TCI regional policy development process and responded to related questions from stakeholders
  • Received guidance from subject matter experts and input from stakeholders on the following topics:
    • The potential environmental, health, and economic benefits of a regional low-carbon transportation program and associated investments;
    • Strategies for setting investment priorities and ways to measure and evaluate program performance; and
    • How a regional cap and invest program and potential complementary policies could work together.

A recording of the livestream will be available shortly. Click here for pictures and a summary of this workshop.


Cap-and-Invest 101 
Friday, April 12, 2019
This video explores the principles behind cap-and-invest policies to reduce global warming pollution. The 40 minute presentation covers how cap-and-invest approaches operate, explores how such a program might be designed to spur investments in low-carbon transportation, and details steps states have taken to accelerate the transition to a cleaner, more resilient transportation system. Learn more.

Reference Case Assumptions for Policy Program Design

Thursday, May 23, 2019

The Transportation and Climate Initiative and the Georgetown Climate Center presented a webinar to discuss modeling methods that TCI states are considering to inform the design of a proposed regional cap and invest program to reduce greenhouse gas emissions from transportation. The purpose of this webinar was to review data inputs and assumptions that may be used for modeling a TCI “reference case,” which is the first step of the modeling process. Learn more.


Reference Case Results
Thursday, August 8, 2019
TCI state leaders shared updates and invited further input and questions from stakeholders to inform the design of a proposed regional cap-and-invest program to reduce greenhouse gas (GHG) emissions from transportation. This interactive presentation reviewed:

  • Updates on the TCI "reference case" modeling run, the first step of the modeling process;
  • Public input received following a previous TCI webinar on reference case assumptions; and
  • Final inputs and assumptions that were used to run the reference case. ​

Learn more and view the slides from the Reference Case Results webinar


Submit your input

You are invited to contribute suggestions, ideas, and other input through TCI's online form.

PLEASE NOTE: All input submitted via this form, including the names and affiliations of those providing the input, will be published on this website on an ongoing basis. View current submissions from stakeholders.