The numbered functional statements are grouped according to functions that deal with closely related subjects. For example, the first group deals with fire risks, the second group deals with emergency egress and response, etc. There are gaps in the numbering sequence for the following reasons:
- Each group has unused numbers which allows for the possible future creation of additional functional statements within any one group.
- There is a master list of functional statements covering the Building Code, Fire Code and the National Code Documents (National Building Code of Canada 2020, National Plumbing Code of Canada 2020 and National Fire Code of Canada 2020) but not all functional statements are pertinent to all Codes.