Data sources

What it is. The Institute of Inspection, Cleaning and Restoration Certification (IICRC) is the leading global standards-setting body for restoration trades. Their Certified Firm Locator is a public, real-time directory of every firm currently certified in disciplines such as Applied Microbial Remediation Technician (AMRT), Applied Microbial Remediation Specialist (AMRS), and Water Damage Restoration.

How we use it. We import every IICRC firm holding a mold-relevant credential (AMRT or AMRS) and tag them with source_name='IICRC' so they can be filtered or removed in bulk if the licensing relationship ever changes.

Refresh cadence. Re-scraped quarterly; on-demand when expiration data lapses.

Citation: IICRC Global Locator (locator.iicrc.org)

What it is. The International Association of Certified Home Inspectors (InterNACHI) operates a public certified-inspector directory. We use the subset that holds the Certified Mold Inspector (CMI) credential.

How we use it. Imported list-page records (name, company, city, phone, profile URL). Drilling into individual profile pages for additional fields is not part of the current import.

Refresh cadence. Re-scraped quarterly.

Citation: InterNACHI Certified Inspectors (nachi.org)

What it is. The American Council for Accredited Certification (ACAC) publishes a public directory of holders for credentials including CIE (Council-certified Indoor Environmentalist), CMC (Council-certified Microbial Consultant), CMR (Council-certified Microbial Remediator), CMRS (Supervisor), and CIEC (Consultant).

How we use it. Filtered to certificants holding any of CRMI, CMI, CMR, CIE, CIEC, CMRS. Tagged with source_name='ACAC' for traceability.

Refresh cadence. Re-scraped quarterly.

Citation: ACAC Find a Certificant (acac.org)

What it is. The National Radon Proficiency Program (NRPP), operated by AARST (American Association of Radon Scientists and Technologists), runs the public US registry of certified radon measurement and mitigation professionals. Every active certificant carries a credential ID, professional discipline, and business contact information that the registrant chose to publish.

How we use it. We import all active NRPP certificants (Measurement Provider, Mitigation Provider, Lab) and tag them with source_name='NRPP'. Cert chips on each profile name the specific NRPP credential the firm holds. Firms that ask to be removed from our directory are kept de-listed even if they remain active in NRPP.

Refresh cadence. Re-scraped quarterly.

Citation: NRPP Find a Pro (nrpp.info)

What it is. The Texas Department of Licensing and Regulation maintains a public registry of every state-licensed mold assessment company, mold remediation company, mold consultant, and mold technician. We import the COMPANIES (full contact info) and skip individual licensees so the directory shows firms, not people.

How we use it. Direct CSV download (vsMoldRemediationCompany.csv, vsMoldAssessmentCompany.csv). Active-license filter applied. Tagged with source_name='TX TDLR'.

Refresh cadence. Re-scraped weekly.

Citation: Texas TDLR mold registry (tdlr.texas.gov)

What it is. The New York State Department of Labor publishes the active list of all mold assessment, mold remediation, and mold abatement contractor licenses through the data.ny.gov Socrata open-data API. Every active license carries the licensee's business name, address, phone, and license number.

How we use it. Pulled live from the Socrata endpoint with status = ACTIVE. Tagged with source_name='NY DOL' and cert label 'NY Mold Assessment Contractor' / 'NY Mold Remediation Contractor' depending on license type.

Refresh cadence. Re-pulled weekly.

Citation: NY DOL Mold Contractor Licenses (data.ny.gov)

What it is. The Illinois Department of Public Health (IDPH) licenses every asbestos professional working in Illinois -- inspectors, contractors, project managers, project designers, supervisors, and air-sampling professionals. The active-license roster is public information published by IDPH.

How we use it. Imported as company-level rows with source_name='IL IDPH'. Cert chips on each profile name the specific IDPH license type. Asbestos-discipline service tags only.

Refresh cadence. Re-pulled quarterly.

Citation: Illinois IDPH Asbestos Program (dph.illinois.gov)

What it is. The Missouri Department of Natural Resources (Air Pollution Control Program) publishes the active list of asbestos abatement contractors, project supervisors, and air-monitoring professionals licensed to work in Missouri. License records include business name, mailing address, and contact information the firm submitted to DNR.

How we use it. Imported with source_name='MO DNR Asbestos'. Active-license filter applied; expired licenses are not imported.

Refresh cadence. Re-pulled quarterly.

Citation: Missouri DNR Asbestos Program (dnr.mo.gov)

What it is. Iowa Health and Human Services (formerly the Iowa Department of Public Health) maintains the registry of every asbestos abatement contractor, project supervisor, worker, and air-monitor licensed to operate in Iowa. The active-license list is published publicly by HHS.

How we use it. Imported with source_name='IA HHS Asbestos'. We dedupe firms that appear in both the Iowa HHS and Missouri DNR lists (multi-state contractors) by phone number; merged rows carry source_name='IA HHS Asbestos + MO DNR Asbestos'.

Refresh cadence. Re-pulled quarterly.

Citation: Iowa HHS Asbestos Program (hhs.iowa.gov)

What it is. The City of Cambridge, Massachusetts Inspectional Services Department publishes the list of asbestos abatement contractors actively licensed to perform work within the city limits. Used by homeowners pulling asbestos-removal permits.

How we use it. Imported with source_name='Cambridge MA Asbestos'. Asbestos-discipline service tags only. Geographic scope strictly Cambridge, MA.

Refresh cadence. Re-pulled annually.

Citation: Cambridge ISD Asbestos Contractors (cambridgema.gov)

What it is. The Chicago Department of Public Health (CDPH) publishes the registry of asbestos abatement contractors approved to perform work within the City of Chicago. Active permits include the firm's business name, address, and contact information they registered with CDPH.

How we use it. Imported with source_name='Chicago CDPH Asbestos'. Geographic scope strictly Chicago city limits; statewide IL coverage flows through IL IDPH.

Refresh cadence. Re-pulled annually.

Citation: Chicago CDPH Asbestos Contractors (chicago.gov)

What it is. The New York City Department of Environmental Protection (DEP) Asbestos Control Program publishes the public list of every certified asbestos investigator (ACP-7) and asbestos handler authorized to perform asbestos-related work in the five boroughs.

How we use it. Imported with source_name='NYC DEP ACP7'. Geographic scope strictly New York City; New York State-wide remediation coverage flows through NY DOL.

Refresh cadence. Re-pulled quarterly.

Citation: NYC DEP Asbestos Control Program (nyc.gov)

What it is. The Delaware Occupational Safety and Health (DE-OSHA) program inside the Delaware Department of Labor publishes the registry of asbestos abatement contractors, supervisors, and workers credentialed to perform abatement work in Delaware.

How we use it. Imported with source_name='DE OSHA'. Asbestos-discipline service tags only.

Refresh cadence. Re-pulled annually.

Citation: Delaware OSHA (labor.delaware.gov)

What it is. The U.S. EPA maintains a public registry of every firm holding a Renovation, Repair, and Painting (RRP) certification under the federal Lead-Safe Certified Firm program. RRP firms are credentialed for LEAD-PAINT hazard work, not mold -- but cross-discipline overlap with mold contractors is common.

How we use it. We do NOT auto-create mold listings from EPA Lead-Safe data. Instead, we cross-reference the registry against firms we already have via our mold-specific sources. When a firm matches by phone or by normalized name + state, we append the 'EPA Lead-Safe Certified Firm (RRP)' credential to their existing listing. This adds a real, verifiable credential without polluting the directory with non-mold contractors.

Refresh cadence. Re-pulled quarterly.

Citation: EPA Lead-Safe Certified Firm Locator (cdxocsppapps.epa.gov)