Indiana Mold Laws and Disclosure Requirements

March 17, 2026

Indiana takes a hands-off approach to mold regulation compared to states like Florida, Texas, or New York. Understanding what protections exist — and what gaps remain — helps homeowners, buyers, and renters make informed decisions.

Indiana Does Not License Mold Professionals

Indiana is one of approximately 30 states that does not require a state license, certification, or registration for mold inspectors or remediators. The Indiana Professional Licensing Agency (IPLA) licenses radon testers, home inspectors, asbestos contractors, and lead inspectors — but mold is not on the list.

This means anyone in Indiana can legally advertise mold inspection or remediation services without state credentials. The Indiana State Department of Health (IDOH) confirms that “beyond 410 IAC 33 for schools and state agencies, there are no laws or regulations that can be enforced for indoor air quality.”

What this means for homeowners: You must rely on industry certifications (IICRC, ACAC, NORMI) rather than a state license to evaluate a mold professional’s qualifications.

Seller Disclosure Requirements

Indiana’s Seller Disclosure Act (Indiana Code 32-21-5) requires residential property sellers to complete a disclosure form covering known defects. While there is no mold-specific checkbox, sellers must disclose:

• Known water damage or flooding history
• Known moisture problems (basement leaks, roof leaks)
• Known hazardous conditions

If a seller knows about a mold problem and fails to disclose it, the buyer may have legal recourse. However, Indiana follows “caveat emptor” (buyer beware) more closely than many states — the burden is on the buyer to inspect.

Best practice: If you’re buying a home in Indiana, include a mold inspection in your due diligence, especially for older homes, properties with basements, or any home with visible water damage.

Landlord Responsibilities

Indiana Code 32-31-8 establishes the implied warranty of habitability for rental properties. Landlords must:

• Maintain the premises in a condition that does not endanger the health or safety of tenants
• Make repairs to keep the property habitable
• Comply with applicable building codes and health regulations

If mold is caused by a maintenance issue the landlord is responsible for (leaking pipes, roof damage, inadequate ventilation), the landlord is generally obligated to remediate. Tenants should:

1. Document the mold with photos and written descriptions
2. Notify the landlord in writing (certified mail recommended)
3. Allow reasonable time for response
4. Contact local code enforcement if the landlord fails to act

School and Public Building Regulations

Indiana Administrative Code 410 IAC 33 establishes indoor air quality standards for schools and state-owned buildings. This is the only Indiana regulation that directly addresses indoor air quality, and it applies only to these specific building types — not to residential properties.

Health Department Resources

The Indiana State Department of Health provides consumer guidance on mold but does not enforce residential mold standards. County health departments may offer free consultations or referrals, but they cannot compel landlords to remediate mold unless there is a separate code violation.

What Other States Do Differently

For context, several states have more robust mold regulation:

• Florida — requires mold assessors and remediators to be licensed
• Texas — requires mold assessment and remediation licenses
• Louisiana — requires mold remediation licensing
• New York — requires mold assessment and remediation licensing (Article 32)

Indiana may adopt similar requirements in the future, but as of 2026, mold work remains unregulated at the state level.

Bottom Line

Indiana homeowners should treat mold seriously despite the lack of state regulation. Hire certified professionals (IICRC AMRT for remediation, ACAC CMI for inspection), get independent testing, and document everything — especially in landlord-tenant situations where you may need evidence for code enforcement or legal action.