Contact

National Building Authority serves as a public reference provider network for the construction services sector across the United States. This page covers the scope of inquiries the provider network supports, what information to include when submitting a message, realistic response timelines, and supplementary contact options for specific professional or regulatory needs. Requests related to contractor providers, permitting questions, and provider network classification fall within the scope this reference handles.

Service area covered

National Building Authority maintains provider network coverage across all 50 states, with providers and reference content organized by construction service category, license classification, and geographic jurisdiction. The provider network addresses the following professional and regulatory domains:

Construction service categories covered:

Geographic scope: Inquiries are accepted for any of the 50 states. State-specific licensing authority names, such as the California Contractors State License Board (CSLB) or the Texas Department of Licensing and Regulation (TDLR), may be referenced in provider network providers and content. The provider network does not administer licensing and does not represent any state regulatory body.

Out-of-scope topics: Federal workplace safety enforcement under OSHA 29 CFR 1926 (Construction), active code violations, legal disputes between contractors and clients, and insurance claims are outside the scope of provider network inquiries. Those matters belong with the relevant state contractor licensing board, local authority having jurisdiction (AHJ), or legal counsel.

What to include in your message

Incomplete inquiries delay responses. Submissions with full context receive faster routing and more useful replies.

For provider-related inquiries (additions, corrections, removals):

For content or regulatory reference inquiries:

For research or data inquiries:

A minimum of 3 identifying details per inquiry — such as state, trade type, and specific issue — reduces back-and-forth and accelerates resolution.

Response expectations

Provider Network inquiries are handled in order of submission. Turnaround varies by inquiry type:

• Provider correction or addition requests: Review within 5 to 7 business days. Complex corrections that require license verification against a state database — such as cross-referencing a contractor's status with the Florida Department of Business and Professional Regulation (DBPR) or the New York Department of State Division of Licensing Services — may require additional time.
• General reference and content questions: Responses within 3 to 5 business days.
• Data and research requests: Scoped individually. Requests requiring compilation across multiple states or trade categories may take 10 or more business days.

Submissions that involve active construction permit disputes, enforcement actions, or complaints against licensed contractors will not receive substantive responses through this channel. Those matters belong with the AHJ for the project jurisdiction or the relevant state licensing board. For example, complaints against licensed contractors in Texas are processed through TDLR's formal complaint portal; in California, through the CSLB's enforcement division.

Additional contact options

The provider network's reference content is organized across several structured areas that address specific professional use cases. Before submitting a contact inquiry, the following resources may resolve the question directly:

• Building Providers — The primary index of contractor and construction service providers, organized by trade category and state. Provider status, classification, and license information are displayed within individual entries.
• — Defines the classification boundaries used in the network, including how general contracting is distinguished from specialty trade work, and how inspection services are categorized separately from contractor providers.
• How to Use This Building Resource — Covers navigation, search filters, and the criteria applied when provider construction professionals under specific trade and licensure categories.

For state-specific regulatory questions that fall outside provider network scope, the authoritative sources are the relevant state contractor licensing board, the state-level AHJ, or the model code organization — the International Code Council (ICC) publishes code adoption maps and jurisdiction-specific adoption status for all 50 states at iccsafe.org. NFPA publishes the adoption status of NFPA 70 (National Electrical Code) by state through nfpa.org.

References

• iccsafe.org
• nfpa.org