Matthew A. Guthrie of CRB Geological & Environmental Services Earns Accredited ACAC Certification

TRAVELERS REST, S.C. - May 23, 2022 - PRLog -- Matthew A. Guthrie has been awarded the Council-certified Indoor Environmentalist (CIE) designation by the American Council for Accredited Certification (ACAC). This prestigious, board-awarded certification recognizes Guthrie's knowledge and field experience in indoor environmental investigation and consulting.

To earn the CIE designation, Matthew passed a rigorous examination based on respected industry texts.  He then submitted documented, verifiable field experience to a board of peers, earning a unanimous vote of approval.

To maintain the CIE designation, Matthew will remain active in the field and complete 40 hours of professional development activities within the next two years.

Matthew is now listed in the ACAC certificant database along with more than 3,000 ACAC certificants around the world.  The database can be searched by name, company or zip code and represents a continuously updated roster of experienced indoor environmental professionals.

The CIE designation is accredited by the Council of Engineering and Scientific Specialty Boards (CESB).  For more information, visit

To learn more about CRB Geological & Environmental Services, Inc., visit

Adam Andrews
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