Q: Is there a code requirement for implementing an Interim Life Safety Measure (ILSM) for occupancies other than healthcare (i.e. business occupancies) if a life safety code deficiency has been identified?
A: Yes… ILSM (also known as Alternative Life Safety Measures) is found in chapter 4 of the 2012 Life Safety Code, specifically section 18.104.22.168 of the 2012 LSC. This describes the need to implement ALSMs when features of Life Safety are impaired. This chapter is part of the ‘core’ chapters and applies to all occupancy chapters, so that means it applies to business occupancies as well.
Most accreditation organizations should be enforcing this in offsite locations, such as business occupancies. Some surveyors fail to ask for this, but it is an enforceable requirement.