License Required

Mold licensing in Washington D.C..

Research last verified 2026-06. Confirm current requirements directly with the state before beginning work.

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Inspection and assessment

License required

DC DOEE Indoor Mold Assessment Professional license required.

  • 01DC Department of Energy & Environment (DOEE) regulates mold assessors under 20 DCMR Chapter 32.
  • 02Eligibility pathway 1 (IICRC): Hold both IICRC AMRT (Applied Microbial Remediation Technician) and WRT (Water Damage Restoration Technician). AMRT is a 4-day in-person course; WRT is a prerequisite.
  • 03Eligibility pathway 2 (CIH): Hold the AIHA Certified Industrial Hygienist (CIH) credential.
  • 04Eligibility pathway 3 (Education + Experience): Relevant degree in environmental science, biology, or a related field + 3 years of documented mold assessment field experience.
  • 05$300 initial license fee; $105 renewal fee. License term is 2 years.
  • 06Insurance: $1,000,000 general liability + errors & omissions coverage required.
  • 07Regulatory citation: 20 DCMR §§ 3200–3215.
License type
DC DOEE Indoor Mold Assessment Professional
Estimated cost
$300 initial + $105 renewal + IICRC courses (~$700–$1,200 total)
Renewal
Every 2 years
Exam
Required

Regulating body: DC DOEE

Open official source

Mold remediation

License required

DC DOEE Indoor Mold Remediation Professional license required.

  • 01Separate Indoor Mold Remediation Professional license required from DC DOEE.
  • 02Eligibility pathway 1 (IICRC): Hold both IICRC AMRT and MRS (Mold Remediation Specialist). MRS requires 12 months of verified field experience plus a 100-question proctored exam.
  • 03Eligibility pathway 2 (CIH): Hold the AIHA Certified Industrial Hygienist (CIH) credential.
  • 04Eligibility pathway 3 (Education + Experience): Relevant degree + 3 years of documented mold remediation field experience.
  • 05$300 initial license fee; $105 renewal. 2-year license term.
  • 06Insurance: $1,000,000 GL with a pollution liability endorsement required.
  • 07DC does NOT have a hard assessor/remediator separation rule — the same company may assess and remediate the same project, but must disclose any financial relationship between the two roles (20 DCMR § 3207).
License type
DC DOEE Indoor Mold Remediation Professional
Estimated cost
$300 initial + $105 renewal + IICRC MRS exam (~$450–$600)
Renewal
Every 2 years
Exam
Required

Regulating body: DC DOEE

Lab pathway

Air sampling and third-party analysis

License required

DC regulations explicitly list "collect samples for analysis" as a licensed assessor activity — no third-party lab exemption.

  • 0120 DCMR § 3203 explicitly lists "collect samples for analysis" as a core licensed activity of a DC Indoor Mold Assessment Professional — there is no collection-only carve-out.
  • 02DOEE confirmed that the real estate inspection exemption does NOT extend to sample collection.
  • 03Sending samples to an AIHA-accredited third-party lab does not create an exemption — the person placing the air cassette needs a DC DOEE license.
  • 04Minimum credential: DC Indoor Mold Assessment Professional via one of three pathways — IICRC AMRT+WRT, AIHA CIH, or degree+3 years documented experience.
  • 05The accredited lab doing the analysis operates under its own AIHA EMLAP accreditation — a separate framework from DC assessor licensing.

This summary addresses the spore-trap collection, accredited third-party lab analysis, and report-rendering model for Washington D.C.. Verify the current interpretation with the responsible state authority or qualified counsel.

Professional context

Relevant certifications

Voluntary or state-recognized credentials associated with mold work in Washington D.C..

  • IICRC AMRT
  • IICRC WRT
  • IICRC MRS
  • AIHA CIH

Before accepting work

Additional notes

  • 01Unlike Texas and Florida, DC has no hard separation rule — the same licensed company may perform both assessment and remediation on the same project.
  • 02DC requires financial conflict-of-interest disclosure (20 DCMR § 3207) if the assessor and remediator have a financial relationship.

After you verify the rule

Keep the requirements visible as the job moves.

Mold Inspector can organize scheduling, field documentation, reports, quotes, and invoices. It does not replace required training, licensing, sampling protocols, legal review, or professional judgment.

See the workflow

Always verify directly with Washington D.C.. Requirements may have changed since 2026-06. Confirm the current rule with the responsible regulatory body before beginning mold-related work. This page is a research starting point, not legal advice.