"In this case, some calculations must be provided to the Green Rater for visual inspection (not a thorough review). This may be applicable in climate zones with little or no heating or cooling loads. However, even in these areas, a good quiet bathroom fan with a simple timer control is a great opportunity to provide occupants with improved indoor environmental quality." change to "For EQ 4.1 (d), Green Raters must verify some evidence (e.g., model results, calculations, or on-site test results) that the design will yield air flows equivalent to those required by ASHRAE Std. 62.2. Operable windows and natural infiltration is not sufficient, because the air flows in Std. 62.2 already assume natural infiltration (i.e., the Std. 62.2 air flows are above natural infiltration). Projects using passive ventilation must submit their strategies to the USGBC for research purposes. Even in areas with little heating and cooling loads, a quiet bathroom fan with a simple timer control is a great opportunity to provide occupants with improved indoor environmental quality."