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Indoor Environmental Consultant

The Council-certified Indoor Environmental Consultant (CIEC) is the senior indoor air quality credential, awarded by the American Council for Accredited Certification (ACAC) to consultants who investigate indoor environments across buildings, schools, healthcare facilities and homes.

Indoor Environmental Consultant — assessing a building's indoor environment

What the certification covers

  • ✓ Indoor contaminants and their potential health effects — the science behind an indoor air quality complaint
  • ✓ Building science: how design, construction, materials and furnishings shape the indoor environment
  • ✓ HVAC systems — their role in indoor air quality and how they are diagnostically assessed
  • ✓ Instrumentation and sampling — taking the right measurements and interpreting the data correctly
  • ✓ Guidelines, regulations and standards governing indoor environmental quality
  • ✓ Remediation oversight — scoping, worker protection, documentation and post-works verification

Why it matters

A CIEC is certified on demonstrated field experience and an independent 120-question examination — broad industry knowledge, not attendance at a course — and must earn the unanimous approval of the ACAC certification board, recertify every two years and complete 20 hours of professional development a year. ACAC’s indoor environmental certifications are the only ones in the field accredited by the Council for Engineering and Scientific Specialty Boards (CESB). For a client, that means the person diagnosing the problem is independently qualified to do it: the investigation defines the scope of works, the works are verified against it, and the cause is addressed rather than the symptom.

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