(1)
Except as permitted by Sentence (2), Article 3.3.4.7. and Subsection 3.3.2., ramps and stairways that do not serve as exits shall conform to the requirements for exit ramps and stairways stated in Sentence 3.4.3.2.(8) and Articles 3.4.3.4., and 3.4.6.1. to 3.4.6.9.
(2)
Ramp s and stairways that serve service rooms, service spaces or industrial occupancies need not comply with Sentence (1), provided
(a)
they are intended only for occasional use for servicing equipment and machinery, and
(b)
they do not serve as exits.