Two transit agencies can run the same kind of buses, serve the same kind of riders and still face very different federal paperwork. The difference is a single label from the FTA: Tier I or Tier II. That label decides what kind of asset plan you write, who can write it for you and how much detail you owe the National Transit Database each year. Agencies that keep clean records for every bus, van and shop asset find the answer easy to prove. See how FleetRabbit keeps transit fleet records audit-ready and take the guesswork out of compliance.
What Is a Tier I vs Tier II Transit Agency? The FTA and NTD Guide
One number decides your tier: the vehicles you run at peak. Learn where the line falls, what each tier must file with the NTD and how to keep your fleet records ready for review.
Find Your Tier in Three Questions
The tier names come from the FTA's Transit Asset Management (TAM) rule. Work down the ladder and stop at the first "yes." Count vehicles that run in peak revenue service, not every vehicle you own.
Confirm your status with the FTA's "Am I a Tier I or Tier II agency?" checklist and your state DOT. This guide is general information, not legal advice.
Tier I vs Tier II at a Glance
9 Plan Elements vs 4: What Sets the Workload Apart
Every agency starts with the same four building blocks. Tier I agencies add five more that show how the plan will actually be run.
SGR means state of good repair. Inventories cover all assets used to provide transit service, including non-revenue vehicles and owned equipment over $50,000 in value.
What the NTD Actually Measures
Both tiers set targets for the same four asset classes and report them to the NTD. Age and condition data drive almost every number.
Bars are illustrative only. Your own targets should reflect your data and the funding you expect over the plan period.
The Yearly Reporting Rhythm
The FTA does not collect your TAM plan directly. It reviews the plan during your triennial review, and the numbers behind it reach the NTD every year.
Prove Your Tier With Records, Not Guesswork
Keep age, usage, inspections and repair history for every transit vehicle in one place. Free for your first three vehicles.
Four Tier Myths, Cleared Up
How FleetRabbit Supports Your Transit Records
Tier rules ask for clean data on every vehicle. Start free and build that record from day one.
Frequently Asked Questions
A Tier I agency operates rail, or runs 101 or more vehicles in peak revenue service across all fixed-route modes or in one non-fixed-route mode. It must write its own TAM plan with all nine elements.
A Tier II agency has 100 or fewer peak vehicles and no rail, or is a Section 5311 subrecipient or an American Indian tribe. It needs a TAM plan with four core elements and may join a group plan.
Yes. They set annual performance targets and report asset inventory, condition data and a narrative, either on their own or through a group plan sponsor.
Yes. Subrecipients can develop their own plan instead of joining the group, though the four core elements still apply.
At least every four years. Targets and NTD data are updated every year.
Yes. You can start free with three vehicles and add more as your fleet grows.
Walk Into Your Next Review With Every Record Ready
Age, hours, PM, inspections, repairs and live tracking for your whole transit fleet in one system. Free for your first three vehicles.
