F210.1 General – Interior and exterior stairs that are part of a means of egress shall comply with 504. EXCEPTIONS: 1. In alterations, stairs between levels that are connected by an accessible route shall not be required to comply with 504, except that handrails complying with 505 shall be provided when the stairs are altered.
Scoping Chapter: F210 – Stairways
504.5+6 – Nosings
504.2-4,7: Treads & Risers
504 – Stairs Quick Guide
