Which one of the following choices violates the Professional Code of Conduct as listed by USGBC?

The option involving a Green Rater advising clients on the quality of another Provider violates the Professional Code of Conduct set by the USGBC because it involves a potential conflict of interest and undermines professional integrity. The USGBC emphasizes that professionals should maintain objectivity and independence in their assessments and interactions. By providing opinions on another Provider's quality, a Green Rater risks creating perceptions of bias or favoring one provider over another, which could not only mislead clients but also jeopardize the trust and collaborative spirit essential in the green building community.

In contrast, collaboration among Providers on projects is encouraged, as it can lead to knowledge sharing and improved outcomes. Attending educational workshops is also a positive activity that fosters continuous learning and professional development. Lastly, with proper consent and in compliance with applicable laws, Providers may disclose client information for research purposes, provided they prioritize confidentiality and ethical standards.