The certification mark, as used or intended to be used by persons authorized by the certifier, certifies that an individual has achieved a specific level of professional competency in construction (knowledge, skills, and/or abilities) related to safely laying out, fastening, erecting, installing, and replacing or dismantling curtainwall systems, or similar systems, as reflected by the successful completion of both a written examination and a performance examination, as well as competency related to environmentally-friendly, or green, construction means, methods, materials, and best practices in construction, in general, as reflected in successful completion of a written examination.