The AHJ Plan Review Process: What Your Fire Protection Submittal Package Must Include

Meta Description: What the AHJ can require at plan review, and what NFPA 72 and NFPA 13 mandate you submit before installation begins — a guide for fire protection designers.

Every fire protection designer eventually runs into the same situation: a submittal package returned at plan review because it was missing something the authority having jurisdiction (AHJ) expected to see. Sometimes it's the hydraulic calculations. Sometimes it's the sequence of operations matrix. Sometimes the plans were stamped by an engineer not licensed in the project state. The submittal process is not standardized across jurisdictions — what satisfies a fire marshal in one city may fall short in the next county. Understanding what the AHJ is legally entitled to require, and what the adopted codes mandate you provide, is the starting point for every project.

Who the AHJ Is and What Authority the Code Grants Them

The term "authority having jurisdiction" appears throughout every NFPA standard, and it is deliberately broad. NFPA 72 (2022) defines the AHJ as "an organization, office, or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, an installation, or a procedure." On any given project, that may mean the local fire marshal, the state fire prevention bureau, a third-party inspection agency retained by the owner, or multiple overlapping bodies — depending on occupancy type, the state's administrative structure, and local ordinance.

The AHJ's authority over submittals flows from the adopted codes themselves. NFPA 1 (2021), the Fire Code, grants AHJs authority to require construction documents and supporting data before issuing a permit. NFPA 72 (2022), Section 7.2 states that documentation requirements apply "where documentation is required by the authority having jurisdiction" — language that gives the AHJ substantial discretion in defining the package. In practice, most AHJs have published submittal checklists that exceed the code minimum. Designers who do not pull those checklists before preparing shop drawings routinely produce packages that fail first review.

The AHJ also determines which edition of each code is locally adopted. A project in a state still on NFPA 72 (2019) operates under different shop drawing requirements than one on the 2022 edition. Always confirm the adopted edition with the AHJ at the project location before issuing any design documents — do not assume the current NFPA edition is in force.

What NFPA 72 Requires in a Fire Alarm Submittal

NFPA 72 (2022), Chapter 7 governs fire alarm documentation. Section 7.4 addresses shop drawings — the primary document set submitted for AHJ plan review. At minimum, shop drawings must include a floor plan showing device locations, a system riser diagram, a control unit diagram, a battery calculation, voltage drop calculations, and a sequence of operations in either an input/output matrix or a narrative format. Section 7.4.2 lists 17 specific items that must appear on floor plan drawings. This list is code-required, not advisory.

Beyond the shop drawing set, NFPA 72 (2022) Section 7.5 governs completion documents — the package produced after installation and before acceptance testing. Section 7.5.5 requires record (as-built) drawings that reflect the actual installation, including updated device locations and any field changes made during construction. Record drawings are distinct from the original shop drawings and must be updated throughout the project. Many designers treat this requirement as a post-project administrative task; the code does not frame it that way.

Two items that consistently generate plan review comments: first, equipment compatibility documentation. Many AHJs will not accept a reference to a catalog sheet — they want UL listing numbers and model numbers that match the approved equipment list on the drawings. Second, the sequence of operations. A matrix format that walks through every initiating device and its effect on every output device is almost always clearer for a reviewer than a narrative buried in a specification section, and a clearer submittal is a faster approval.

What NFPA 13 Requires in a Sprinkler Submittal

NFPA 13 (2022), Chapter 22 establishes working plan requirements for sprinkler system submittals. Working plans must be submitted to the AHJ before installation, addition, or remodeling begins; electronic submittals are permitted where the AHJ accepts them.

Required contents include: a plot plan showing the building footprint, water supply source, and street main locations; hydraulic calculations demonstrating that system demand meets the design density across the hydraulically most demanding remote area; a materials list with sprinkler model numbers, orifice sizes, K-factors, and temperature ratings; and a riser diagram showing all control valves, test and drain connections, and backflow prevention assemblies.

The hydraulic calculation package is where many submittals fall short. NFPA 13 (2022) requires the calculation to include the minimum rate of water application (density), the design area location, hose stream allowances, and the required flow and residual pressure at the base of riser. The package must also include a graphical plot of system demand against available water supply, with a 10% safety margin. A calculation package missing the supply curve will be returned by most AHJs.

One additional item that routinely requires correction: the hydraulic design information sign. NFPA 13 (2022) requires a permanently attached sign at each system control valve identifying the design area, density, flow, and residual pressure used in the calculations. This must be specified on the drawings — it is not a contractor-installed afterthought.

Common Reasons Submittals Fail Plan Review

AHJ rejection comments cluster around a predictable set of deficiencies. On fire alarm submittals, the most frequent is a missing or incomplete sequence of operations. Designers who do not document every initiating device and its intended effect on every controlled output create ambiguity the AHJ cannot approve. On sprinkler submittals, water supply data problems are the primary driver of rejection: using a fire flow test older than one year, failing to apply seasonal derating, or submitting test data not witnessed by the AHJ or utility. Some jurisdictions require the flow test to be conducted by the local authority directly — check this requirement before scheduling any field testing.

Stamping is the third recurring issue. Several states require that sprinkler working plans bear the wet stamp of a licensed fire protection engineer or a NICET IV-certified designer. Submitting plans stamped by an engineer who is not licensed in the project state is a common cause of delay on multi-state programs. Confirm the AHJ's stamping and certification requirements before issuing the submittal package.

ProTech CDS prepares fire alarm, sprinkler, and suppression submittal packages for projects across all occupancy types and jurisdictions. NICET IV review and PE seals are available in all 50 states when the AHJ requires them. Packages are delivered under your firm's name — white-label, no co-branding required. If you have a project approaching design development and need a submittal-ready package, start at lockin.protechcds.com.