Carl Grimes, HHS CIEC, has a broad background of experience across many “silos” within the spectrum of “indoor air quality” groups and associations. He has worked as a professional consultant with individuals reporting health-associated complaints since 1987. First, with his own firm Healthy Habitats LLC in Denver, CO, and for the last 5 years as the Managing Director of Hayward Score in Carmel, CA. Carl was on the committee that wrote the first mold remediation standard, S520, revised the water damage restoration standard, S500, (both are now ANSI accredited), plus the addition of mold remediation procedures for both the NADCA and the ACCA duct cleaning standards. He has chaired other ANSI committees and trained two organization in ANSI procedures. Mr Grimes is the Past President of the Indoor Air Quality Association (IAQA) and the past VP of Practice of the International Society of Indoor Air Quality and Climate (ISIAQ). He served on the joint workgroup of the American Academy of Allergy, Asthma, and Immunology (AAAAI) and their sister organization, American College of Allergy, Asthma, and Immunology (ACAAI) writing a series of five medical practice parameters for allergists. He is also on the Ethics Committee of the International Society of Environmental Epidemiology (ISEE). Mr Grimes has been active in ASHRAE as the incoming vice-chair of SGPC10, Interactions Affecting the Indoor Environment, a voting member of TC1.12, Managing Building Dampness, was on the select committee that wrote the ASHRAE Mold Position Document and the subsequent Draft document “defining building dampness.” He is currently chairing a workgroup on extending the WHO definition of “health” to include operational parameters. As Managing Director of Hayward Healthy Home Institute since 2013, Carl has been instrumental in the development of Hayward Score, a free online questionnaire collecting broad-based data on housing characteristics, occupant use and behaviors, plus their reported symptomology.