Executive summary
A building code is a structured document that reads as prose. Requirements carry conditions, definitions, exceptions, cross-references to other provisions and to referenced standards, and an adoption context that determines where and when they apply.
Making that structure explicit lets systems retrieve the right provision reliably and evaluate the subset that can be evaluated deterministically. It does not confer interpretation, and it does not remove the need for expert validation of every encoded requirement.
Why structure matters more than search
Full-text search over a code returns passages. Review needs the applicable requirement for a specific building, in a specific jurisdiction, under a specific adopted edition, together with the definitions and exceptions that modify it [1][2].
Research on building-regulatory data supports this framing: usable rule generation depends on structured representations of regulatory content rather than on raw text alone [3]. Federal challenge material on deterministic, AI-assisted compliance checking makes the same separation between structure and evaluation [4].
The anatomy of a structured requirement
| Element | Why it is required |
|---|---|
| Applicability conditions | Determines whether the requirement applies to this building at all |
| Definitions in force | Code terms have specific meanings that differ from ordinary usage |
| Thresholds and units | Evaluation is impossible without unit-consistent values |
| Exceptions and alternatives | A requirement without its exceptions produces false findings |
| Cross-references | Provisions and referenced standards modify one another |
| Jurisdiction and edition | Determines enforceability and the effective period |
| Provenance | Which provision the structure derives from, for audit and correction |
What machine-readable does not mean
- It does not mean all provisions are executable. Performance-based and judgment-dependent provisions are structured for retrieval, not for automatic determination.
- It does not remove interpretation. A structured requirement encodes someone’s reading of a provision, and that reading needs a named expert owner.
- It does not travel between jurisdictions unchanged, because adoption and amendment differ.
- It does not authorise reproducing code text. Structures should paraphrase and cite the official publication.
- It does not confer coverage. A system must state which provisions it evaluates and which it does not.
Implications for authorities having jurisdiction
Where a department adopts structured code content, it should know who authored each rule, which provision it derives from, which edition, and what tests it passed. Those four facts make a finding defensible.
Local amendments and interpretations must be structured too, or the rule set will silently reflect the model provision rather than the enforceable local requirement.
Implications for professionals and industry
Published rule statements let designers see the exact reading being applied. Where a designer disagrees, the dispute becomes specific and resolvable rather than a general objection to automation.
For software teams, the important discipline is provenance: every structured element traceable to its source provision and edition, so corrections can be applied systematically.
Risks, limitations and safeguards
- Encoded misinterpretation scales; test cases and expert validation are the control.
- Stale structures diverge from the adopted edition; version and review on the code cycle.
- Reproducing substantial code text raises copyright issues; paraphrase and link.
- Coverage gaps read as compliance unless explicitly stated.
- Definitions borrowed from ordinary language rather than the code produce subtly wrong evaluations.
PermitAssure perspective
PermitAssure treats structured code knowledge as versioned content with named owners, provenance to the source provision and edition, human-readable rule statements and test cases. Provisions that require professional interpretation are marked as such and routed to a reviewer rather than evaluated.
Five key takeaways
- Structure serves reliable retrieval and bounded evaluation, not automatic interpretation.
- A structured requirement must carry applicability, definitions, thresholds, exceptions, references, edition and provenance.
- Every encoded requirement is a documented interpretation with a named expert owner.
- Local amendments and interpretations must be structured or the rule set is wrong.
- Coverage must be stated explicitly; silence is not compliance.
References
- National Building Code of Canada 2025. National Research Council Canada. nrc.canada.ca. Accessed 3 August 2026.
- 2024 Ontario Building Code. Government of Ontario. www.ontario.ca. Accessed 3 August 2026.
- CODE-ACCORD: A Corpus of Building Regulatory Data for Rule Generation. arXiv preprint 2403.02231. arxiv.org. Accessed 3 August 2026.
- Deterministic Artificial Intelligence-Assisted Compliance Checking of Building Permit Applications. Innovative Solutions Canada, ISED. ised-isde.canada.ca. Accessed 3 August 2026.
- Codes Canada. National Research Council Canada. nrc.canada.ca. Accessed 3 August 2026.
Cited statements follow the sources above. Frameworks, diagrams and interpretation in this article are PermitAssure's own.
Related resources
Next step
Take one bounded provision your department applies weekly and write it as a structured requirement with test cases.
See the code intelligence approachPermitAssure provides digital review, workflow and decision-support capabilities. This resource is educational and does not constitute regulatory, legal, architectural or engineering advice. Final interpretations, approvals and regulatory decisions remain the responsibility of the applicable Authority Having Jurisdiction and its authorized professionals.