The APTA Standards Program has advanced several documents for public review and comment. We are seeking feedback from all industry stakeholders to help shape the language found in these documents. The Public Comment period is an essential component of APTA’s consensus-based standards development process.

We invite all bus and rail transit executive-level administrators, operators, transit security professionals, procurement, and rail signals and communications personnel to provide their criticisms, comments or recommendations. APTA will accept any and all comments from industry stakeholders through February 10, 2022.

The current set of documents address the following topics:

Rail Transit Systems – Signals and Communications

  • Approach Locking Tests
  • Switch Machine Inspection and Maintenance

Security  & Emergency Management – Infrastructure & System Security

  • Identifying Suspicious Behavior in Mass Transit

To view these documents and submit any comments visit the Standards Public Comment page.

If you experience any difficulties submitting your feedback on APTA’s secured website, please email our team at

The current set of document reviews must be completed by February 10, 2022. Thank you for your continued support of the Standards Program.

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