The Building Code (Section 907.5.2) typically requires notification in every occupiable space in a building.
You will have to decide if the space is "occupiable".
Here is the definition from the Building Code
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When I'm not the EoR, I check to see if the EoR placed emergency egress lighting (called means of egress illumination in the Building Code) in the space, in which they considered the space occupiable.