National AHJ Registry — Coverage Across All 50 U.S. States

The National Database for AHJ and Code Adoption

Instantly verify the Authority Having Jurisdiction, code adoption, and jurisdiction data for any project location.

Powered by CodeComp.ai

See It in Action
One search. Instant jurisdiction intelligence.
Interactive AHJ Map Interface

Example AHJ Result

AHJCity of Murfreesboro
Code AdoptionNEC 2017
Utility TerritoryMiddle TN Electric
Data ConfidenceVerified
Data sourced from official municipal and state publications
Continuously updated jurisdiction intelligence
National AHJ registry database
Platform Capabilities
Everything you need to navigate jurisdiction complexity at scale.
AHJ Database

Comprehensive Authority Having Jurisdiction records for every U.S. state and territory.

Code Adoption Intelligence

Track which electrical, building, and energy codes each jurisdiction has adopted.

Permit Authority Data

Identify permitting requirements, portal links, and contact information.

Coming Soon
Utility Territories

Map utility service territories to project locations automatically.

Coming Soon
Multi-State Projects

Support for projects spanning multiple jurisdictions and state boundaries.

API Access

Programmatic access to AHJ data for integration into your existing workflows.

How It Works
Three steps to verified jurisdiction data.
1
Enter Project Location

Type any U.S. address, city, or county into the search bar.

2
Identify Jurisdiction

We resolve the exact AHJ, county, and municipality for your location.

3
Access Verified Data

View code adoption, permit authority, and jurisdiction details instantly.

Built For
Professionals who need reliable jurisdiction data.
Design Engineers
Electrical Contractors
Solar / EV Installers
Developers
Infrastructure Platforms
Plans
Start free. Scale as your needs grow.
Free
Get started with basic lookups
  • AHJ lookups
  • Map interface
  • Basic search
  • Single state
Electrical
For electrical professionals
  • Unlimited AHJ lookups
  • Code adoption data
  • Multi-state access
  • Permit authority info
  • Priority data updates
Full Suite
Complete jurisdiction intelligence
  • Everything in Electrical
  • Utility territories
  • Bulk lookups
  • Project management
  • Team access
API
Programmatic access at scale
  • REST API access
  • Webhook notifications
  • Custom integrations
  • SLA guarantees
  • Dedicated support
API Access
Integrate jurisdiction intelligence directly into your platform.

Access the full AHJ database programmatically. Query by address, coordinates, or jurisdiction ID to get structured AHJ records, code adoption data, and permit authority information.

Permitting SoftwareEngineering PlatformsConstruction SaaSSolar Design ToolsCRM Systems
GET /api/ahj/find?state=TN&city=Murfreesboro

{
  "jurisdiction_id": "TN-47149-MUR",
  "name": "City of Murfreesboro",
  "kind": "city",
  "state": "TN",
  "county": "Rutherford County",
  "code_adoption": "NEC 2017"
}
Roadmap
Building the infrastructure layer for jurisdiction intelligence.
  • Local amendments tracking
  • Permit portal integrations
  • Utility territory intelligence
  • Compliance automation
  • CodeComp.ai integration
Start Finding AHJs in Seconds

Enter any U.S. address to access verified jurisdiction data.