USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Site Notification

Site Notification

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

NTD Annual Reporting User Guide

Step-by-step user guide for navigation and data entry within the National Transit Database (NTD) reporting tool.

Recent Updates:

  • September 7, 2017: Added guidance for optional 2017 Asset Inventory Module data elements on forms A-15, A-20, A-30, A-35.
  • November 3, 2017: Added guidance for modernized P-20 form and delete mode functionality.
  • September 4, 2020: Updated navigation instructions and images to reflect modernized system interface.
  • May 2022: Refresh for 2021 Report Year. Added guidance for Safety and Security (S&S) Reporting.
Effective Date: Monday, May 2, 2022
DOT is committed to ensuring that information is available in appropriate alternative formats to meet the requirements of persons who have a disability. If you require an alternative version of files provided on this page, please contact