A total of 15 states had or have mold guidance require mold licensing or regulate mold businesses in some way. Of this list of 15, two have repealed the laws and one of them reintroduced a law requiring licensing in 2024. New Jersey is part of the 15, as they passed regulations for the Department of Community Affairs to establish regulations for mold businesses, DCA manages New Jersey's lead inspection laws which are some of the most stringent in the nation.
Arkansas, Florida, Kentucky, Louisiana, Maine, New Hampshire, New York, Oklahoma, Texas, Virginia & Washington D.C, either require licensing for aspects of mold inspection/remediation or set standards or guidance these parties must follow when involved with mold.
In the absence of Federal regulations on mold, including standards of practice, Permissible Exposure Limits (PEL), air quality standards, licensing, or procedures for testing, evaluation, and remediation, individual states have established their guidelines or have chosen to have none. There is a great disparity between the states that do have regulations when you compare them against each other.
Even OSHA, which is designed to ensure the safety of works, has no mold standards. OSHA’s “general duty” clause requires employers to provide a workplace that is free of identified hazards. For the general duty clause to be breached, a clearly defined hazard and subsequent exposure must be identified. Because of the inability to set exposure limits/standards, OSHA does not consider the presence of mold as an identified hazard. Wow, the World Health Organization and CDC all consider mold to be an indoor air pollutant, but since the Federal government has no reference standard for mold, OSH says mold is not a hazard.
Here is a quick summary of mold regulations in the various states:
Arkansas
On April 10, 2009, the Governor of the State of Arkansas signed into law Public Act No. 1467, to License Mold Investigators; To Establish Standards for Mold Investigations; To Establish Qualifications For Mold Investigators; and For Other Purposes. This act was repealed in 2011.
On February 23, 2011, the Arkansas General Assembly enacted Act 341, An Act to Create the Mold
Investigation Advisory Board; To Study Laws and Rules Regarding Mold Inspections and Remediation; and For Other Purposes. As part of the mandate of this Act, the Mold Investigation Advisory Board has chosen to publish guidelines establishing mold abatement protocols that include acceptable methods for the performance of Mold Investigation and Remediation within the State of Arkansas. These guidelines are not regulations. The intent of the Arkansas Guidelines for Mold Abatement Contractors is to fulfill, in part, the legislative mandate set forth in Act 341. Now an attorney will read that there are standards of proactive mold companies should follow, if they do not the words negligence, improper, substandard, and lawsuit can be expected to be heard.
California
As of January 1, 2016, mold is a condition that makes a home substandard in California. The owner of a rental property cited as substandard by a local (city or county) code inspector is required to repair the substandard condition. Below are the parts of the California Health & Safety Code that refer to dampness and mold. In ENGLISH California Adds visible mold growth to conditions defining substandard housing in the state’s Health and Safety Code. California laws include a written disclosure law for mold. Because of this, California landlords are required, by law, to provide tenants with written disclosures when a landlord is aware of present mold in the rental unit. Written disclosures are documents that are signed by both landlords and tenants.
Florida
Provides that Florida’s Department of Business and Professional Regulation (DBPR) administers the mold-related services licensing program. DBPR chose the American Council for Accredited Certification (ACAC) to provide the license examinations required.
Illinois
In 2003, the Illinois General Assembly adopted House Joint Resolution 12, which established the Joint Task Force on Mold in Indoor Environments. This task force examined the mold issue in Illinois and made recommendations to the General Assembly about the regulation of mold in indoor environments in Illinois. In 2007, the Mold Remediation Registration Act was passed into law. This law requires that IDPH annually report to the General Assembly any federal research and regulations related to mold cleanup and standards for mold remediation training.
Kentucky
Kentucky Department of Law to establish minimum standards for mold remediation companies based on the general mold remediation principles set forth by the Institute of Inspection, Cleaning and Restoration Certification (IICRC).
Louisiana
The State Licensing Board for Contractors licenses a mold remediation specialist (specialist). The specialist has training in both mold assessment and mold remediation and receives instruction on Louisiana’s “Unfair Trade Practices and Consumer Protection Law”.
Maine
Maine prohibits a person or company from providing both mold assessment and remediation services on a project unless the building owner has signed a disclosure statement regarding the potential conflict of interest.
Maryland
Maryland passed the Mold Remediation Services Act in 2008. The Maryland Mold Remediation Services Act was a law that required companies and contractors to be licensed by the Maryland Home Improvement Commission to perform mold remediation work on residential properties.
Due to budget constraints, the law implementation was postponed indefinitely. The law was terminated on July 1, 2019.
New Hampshire
Requires American Council for Accredited Certification (ACAC) certification for mold assessors.
New Jersey
Established standards for the licensing of consultants who conduct Indoor Environmental Health Assessments (IEHAs) in childcare centers and educational facilities. Legislative session 2022 – 2023 requires DCA (Department of Community Affairs) to establish procedures for inspection and abatement of mold hazards in residential buildings and school facilities, and certification programs for mold inspectors and mold hazard abatement workers. So, regulations in NJ are on the horizon.
New York
A leader in mold regulations, which started in 1993, and updated in 2008, with their Assessment and Remediation of Fungi in Indoor Environments. This guideline has been referenced extensively and was the initial standard. Current regulations require licensing for mold inspectors and remediators. . Eligibility for the state license includes completion of a U.S. Department of Labor approved coursework.
Oklahoma
Any person or entity inspecting houses for mold shall not also render services for removing the mold unless the total cost of the inspection and removal is $200 or less. It appears unusual, but makes sense if you trying to ensure consumers do not overpay or hire firms with a conflict of interest for mold services.
Texas
Prohibits a person from engaging in mold assessment or remediation, unless that person holds a license from the state. The law prohibits license holders from performing both mold assessment and mold remediation on the same project. It establishes certain minimum work practices and recordkeeping requirements for licensed mold assessors and remediators. Excluding licensing for labs that test mold samples, there are 7 separate licenses for companies and individuals dealing with mold.
Virginia
Mold licensing law was passed in April 2012, but repealed in July 2012. A new law went into effect in July 2024 requires contractors who do mold remediation on homes in Virginia to have certification from the Institute of Inspection, Cleaning, and Restoration Certification. Although, the Virginia Department of Health (VDH) does not assess the credentials of, or make recommendations regarding, specific mold specialists
Washington D.C.
Requires you to obtain a license from the DC Department of the Environment. In addition to education and experience requirements, applicants must pass an approved examination administered by the American Council for Accredited Certification (ACAC).
Rental property mold regulations
More States have regulations regarding mold in rental properties or requiring mold disclosures when selling real estate as opposed to laws that regulate testing and remediation of mold.
Although not explicitly stated in Maryland or federal law, landlords are required to provide mold-free environments for their residents.
2012 Regular Session: Proposed Senate Bill 70 Environment –Mold Inspections–Standards, Reporting, and Penalties for rental properties.
Sellers of real estate Under Maryland law, you’re required to disclose any known mold issues, including past water damage, on the Residential Property Disclosure and Disclaimer Statement. Md. Code § 10-702
- You must disclose known defects, including mold issues, that materially affect the property’s value or desirability under Md. Code § 10-702.
- You’ll need to document all known mold issues and remediation efforts to foster trust with potential buyers and protect yourself from future liability.
- Selling ‘as-is’ with a disclaimer doesn’t relieve you of the obligation to inform buyers of known latent defects, including mold issues.
States that require mold disclosure:
Nationwide, we see regulations in place to protect renters of residential real estate. For example this unnamed state has the following: A residential property owner who receives written or electronic notice from a tenant that indoor mold or suspected indoor mold exists in the dwelling unit or in a common area of the property shall inspect the property within 7 days and remediate the condition in accordance with subsections (b) and (c) of this section within 30 days of the inspection unless a shorter timeframe is ordered by a court or the Mayor.
Disclosure of prior mold, remediation, or water damage is fast becoming a de facto standard in residential sales contracts. In short States that have Disclosure Statements and particularly the ones that require that a disclosure be completed, mold is topic that is required to be disclosed.
New Jersey, for example, has N.J.S.A. 56:8-19.1 requires that if a filled-in property condition disclosure statement indicates the seller’s awareness of water leakage, accumulation or dampness, the presence of mold or other similar natural substance, or repairs or other attempts to control any water or dampness problem on the real property, the involved real estate broker, broker-salesperson, or salesperson is required to provide the buyer with a physical copy of the Department of Health’s "Mold Guidelines for New Jersey Residents" pamphlet.
New Jersey consumer fraud law bans the "concealment, suppression, or omission of any material fact with the intent that others rely upon such concealment, suppression or omission, in connection with the sale or advertisement of any … real estate." N.J.S.A. 56:8-2. If the property has paperwork relating to mold inspection of remediation it is to be disclosed to buyers.
Marijuana and Mold
Since legal cannabis is happening in more and more states, the individual states has set mold standards on mold. Yes, there is a weed mold standard. Most states set the limit on yeast and mold content in cannabis at 10,000 “colony forming units” of yeast and mold per gram, a measure of cells that could form harmful growths. They test either DNA or culture to see if mold will grow.
The Future of Mold Regulations -
Expect states to have standards of habitability for rental properties regarding mold.
States will require mold disclosure, and prior water damage when selling a home.
To protect consumers, states will pass regulations or guidance for standards of work practices regarding mold testing and remediation.