An NFIRS compliant fire department is defined as having it’s incident reports entered into NFIRS. Typically there is a suitable lag (e.g. up to date by the middle of the next month, or up to date for that quarter … as defined by your state or territory.)
NFIRS (although it is national) is typically coordinated at the the state (or district) level and state coordinators can help you. Contact your state/territory NFIRS point of contact to determine your local requirements. Some states allow fire departments more leeway than others.
Note: In order to keep compliant some fire departments need to enter a “no activity” report if they have no incidents during their past reporting period.
Select your state or territory to conenct with your state point of contact.