Review, Comment on APTA Rail Transit Signals and Communications Standards
10/6/2025

The APTA Standards Program has advanced seven new documents for public review and commenting and APTA is seeking feedback from all executive-level industry stakeholders to help shape the language in the documents.
The public comment period is an essential component of APTA’s consensus-based standards development process.
The current documents address the following topics:
Rail Transit Signals and Communications
- Fiber Optic Multiplexer Inspection, Testing, and Maintenance
- Signal Equipment Room Inspection
- Signal and Communication System Configuration Control
- AC and DC Power Supply Ground Detection Inspection, Testing, and Maintenance
- Vital Relay Testing
- Processor-Based System Inspection, Testing, and Configuration Control
- Impedance Bond Inspection and Maintenance
Provide comments here by Nov. 2. For issues or questions, contact standards@apta.com.