Title 17F Construction Standards
Chapter 17F.070 Existing Building and Conservation Code
Exterior stairways must be noncombustible; however, wood stairways of at least two-inch nominal thickness may be used on three-story buildings in approved locations and maintained in a safe condition.
Date Passed: Monday, February 28, 2005
Effective Date: Saturday, April 2, 2005
ORD C33594 Section 6