Yes. There are no requirements stipulating who can conduct an FSES. Once submitted, the OSFM will have a fire prevention inspector verify the conditions that are credited on the FSES as well as check that the document is properly filled out and calculated. The OSFM does not fill out the FSES documentation for a facility. Although it is not required, the OSFM recommends that occupancy owners use professionals who are familiar with the National Fire Protection Association’s FSES process to ensure accuracy. (This usually means a professional engineer or architect who has experience with the FSES process).