Assessing and managing indoor environmental quality in relation to building design, operation and maintenance using the highest degree of knowledge and skill; Evaluating and establishing policies, procedures and recommendations regarding the quality of the indoor environment to protect and improve the health and well being of its occupants; The certification mark, certifies that the person using the certification mark, as authorized by applicant and its certification boards, has met certain verified educational and/or experience requirements in the field of indoor environmental quality and has demonstrated competency at the highest level by satisfactorily completing a rigorous written examination