Sources and accuracy

Where the data comes from, how current it is, and what to verify before making decisions.

Every data point in the CSLID comes from NASCLA and state regulator sources. This page explains where the information comes from, how fresh it is, and what you should always verify yourself.

The CSLID is designed for orientation and comparison. It does not replace the live regulator, current statutes, official forms, or active renewal requirements. Always verify before relying on this information for bidding, licensing, or legal decisions.

Where the data comes from

Content is sourced from NASCLA (National Association of State Contractors Licensing Agencies) and supplemented with direct review of state regulator websites, statutes, and administrative codes.

Source type	What it provides
NASCLA data	Baseline licensing thresholds, board structures, reciprocity arrangements, and credential catalogs across jurisdictions.
State regulator websites	Current contact information, fee schedules, application procedures, and board-specific rules.
Statutes and administrative codes	Authority citations, threshold definitions, and exemption language.

NASCLA data provides the structural backbone. The CSLID restructures, normalizes, and supplements that data — it does not independently audit or verify it.

How current is it?

Content reflects a point-in-time snapshot. Regulatory requirements change as legislatures amend statutes, boards update fees, and agencies revise application procedures.

Dimension	Current status
Content baseline	Source data as of Q1 2026
Update frequency	Pages are updated as changes are identified; there is no fixed update cycle
Verification	Users should verify against live regulator websites before relying on any data point

Changes frequently:

• Fee schedules — boards adjust fees annually or with budget cycles.
• Reciprocity agreements — added, modified, or terminated by individual boards.
• Exam requirements — testing providers, pass rates, and content areas evolve.
• Contact information — phone numbers, addresses, and staff change regularly.

Changes infrequently:

• Dollar thresholds — set by statute and require legislative action to change.
• Board structures — agency reorganizations are infrequent.
• Work-lane classifications — the categories of regulated work are relatively stable.

How we present the data

Source material is rewritten in plain English — you should not need to interpret statutory language to find what you need. Every state page follows the same 12-section layout so you can learn it once and apply it everywhere.

Factual data — thresholds, fees, board names, reciprocity lists — is never altered. The presentation is restructured for clarity: tables replace paragraphs, accordions replace long lists, and role-specific tabs surface what matters to contractors and regulators before the detail sections.

Limitations

Limitation	Detail
Point-in-time data	Content may lag behind recent legislative or regulatory changes.
NASCLA as baseline	Where NASCLA data is incomplete or ambiguous, the CSLID may reflect those gaps.
No independent audit	The CSLID does not independently verify every data point against primary statutes.
Local licensing gaps	States with local-first models (e.g., Illinois) may have limited statewide data because licensing is administered at the city or county level.
”Not specified” fields	When a data point is missing, the page says “Not specified” — this means the source did not clearly state it, not that it does not exist.

Verification guidance

Before relying on any data point in the CSLID for a decision:

1. Check the live regulator website

   Every jurisdiction page includes regulator contact information in the Who regulates construction section. Visit the linked website to confirm current requirements.

2. Confirm fee schedules

   Fees change frequently. Check the regulator’s current fee schedule, not the snapshot in the CSLID.

3. Verify reciprocity status

   Contact the target board directly to confirm that a reciprocal agreement is still active and that your credential qualifies.

4. Check for recent legislative changes

   Search for recent session laws or administrative rule changes that may have modified thresholds, exemptions, or licensing requirements since the content in the CSLID was last updated.

Legal disclaimer

The CSLID is provided for informational and educational purposes only. It does not constitute legal, professional, or regulatory advice. The information on this site is restructured from publicly available sources for readability and comparison. It may contain errors, omissions, or outdated information.

Users are solely responsible for verifying all licensing requirements, fees, reciprocity arrangements, and regulatory details with the appropriate licensing authority and current official sources before making any bidding, licensing, or legal decisions.

The CSLID, its authors, and its publishers disclaim all liability for any actions taken or not taken based on the content of this site.