I've received a comment from a LA reviewer regarding mobile shelving. The comment states we need to show compliance with the NFPA 13 area limitations for this hazard group and the comment states this area is 1500 SF for This is approximately 200 SF of 10' tall mobile shelving so Ordinary Hazard Group 2. I can not find anything in NFPA 13 that tells me what is required to define this area or even the 1500 SF number the plan checker is citing. What am I missing? Are we required to have an actual wall? Rated? Or just no more than 1500 SF?