I would like to know if there's any way I can consider walk-in closets in a residential building as unoccupied spaces. The IEQ Space Matrix lists them as occupied, but this seems silly, since nobody spends any significant time there. According to the definition of regularly occupied spaces (1 hr per person per day), walk-in closets are definitely unoccupied.

Furthermore, CIR #1888 states, "Note that walk-in closets are excluded from the Standard, since they cannot be considered as "occupiable space" by the Standard's definition (page 4 of ASHRAE Standard 62.1-2004)." So it seems like the CIR and ASHRAE 62 both disagree with the IEQ space matrix. Also, NYC Mechanical Code, where this project is located, classifies walk-in closets as unoccupied.

So if I take this all together, it seems like there may just be a typo in the IEQ Space Matrix, since the CIR, ASHRAE (and NYC Code) all disagree. Has anyone had any experience with walk-in closets? Can I get away with not ventilating them? Thanks in advance.