Applicants for congressionally directed funding may request letters of certification from the Atlanta Regional Commission (ARC). If you require certification that your project is either in the TIP or eligible for federal funding and that ARC will amend TIP to reflect new project funding, please complete the below form to request a letter.
The Transportation Improvement Program (TIP) allocates federal funds for use in the construction of the highest-priority projects in the Metropolitan Transportation Plan (MTP), the long-term transportation vision for the 20-county region. Projects included in the TIP must be fully funded.
The Atlanta Regional Commission, the federally designated Metropolitan Planning Organization for the 20-county Atlanta region, is responsible for developing and updating the TIP and MTP to meet federal planning requirements and address local needs.
The TIP covers the first four years of the MTP, and is the means by which federal, state and local funds are approved for all significant surface transportation projects and programs in the 20-county Atlanta region.
ARC provides a range of useful tools that offer detailed information about TIP projects across region:
The 2024 TIP solicitation window is now open. For more information, please visit the project solicitation page.
Administrative modifications are made to the TIP on a quarterly basis as the schedules and budgets of projects change.
More significant alterations, called amendments, are made on occasion by vote of ARC’s Transportation & Air Quality Committee. This committee includes a representative from every county in the region, as well as from many partner agencies. Please visit the Amendment page for information on any current or pending amendment processes.
Administrative Modifications & Amendments FAQs
1st Quarter 2024 TIP Administrative Modifications Change List
Amendment 8 TIP/MTP Change List (processed August 23, 2023)
*All dates are tentative and subject to change
Review previous modifications and amendments.
ARC’s Metropolitan Transportation Plan is a long-range document that maps out the transportation projects that will be most useful to the region through 2050. The MTP is the transportation component of the Atlanta Region’s Plan and is based on the amount of funding we think will be available during that time.
ARC is committed to enforcing the provisions of Title VI of the Civil Rights Act of 1964 and taking positive and realistic affirmative steps to ensure the protection of rights and opportunities for all persons affected by its programs, services, and activities.
Spring 2024
April 26, 2024
September 15, 2023
May 19, 2023
April 29, 2021 – TIP Administration and Maintenance
May 13, 2021 – Studies and Contracts
TIP Training – List of Resources
ARC’s Strategic Partners are committed to fostering collaborative regional approaches that improve quality of life in metro Atlanta. Their support elevates ARC leadership programs, research and events throughout the year. Learn more.
