An authority having jurisdiction, or AHJ, is the agency, official, or organization responsible for applying or enforcing requirements for a project.
Definition
An AHJ may review plans, issue permits, inspect work, or interpret adopted codes and other requirements within its authority. A project can involve several authorities, such as a local building department and separate agencies for utilities, transportation, or environmental permits. Which authority has a role depends on the project location, type, and applicable rules. For a firm owner, identifying the relevant authorities helps define coordination tasks, submittal responsibilities, and schedule assumptions. The AHJ is not the project owner, designer, or contractor simply because it reviews their work. Its review also does not replace the design professional’s responsibilities under the contract and applicable professional rules. Authority boundaries and review processes can differ, so firms generally record who handles each approval and what decision is needed. The International Code Council provides model codes and resources used in many code systems, while local authorities determine applicable requirements.
How owners use it
- List the authorities involved at kickoff and assign responsibility for each permit or review submittal.
- Include expected agency coordination and response steps in project schedules and scopes of service.
- Record agency comments and decisions that change design assumptions or deliverables.
- A site plan needs a building review and a separate utility approval, so the project manager tracks both authorities and submittals.
