LEED Green Associate Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

The correct choice is grounded in the importance of selecting luminaires with low Backlight, Uplight, and Glare (BUG) ratings to effectively meet the light pollution reduction criteria of the Sustainable Sites (SS) credit. Low BUG ratings indicate that the luminaire minimizes the unwanted light emitted into the environment, which helps to mitigate the impact of artificial lighting on surroundings and preserves the nighttime sky.

This approach supports ecological health, enhances the visibility of the stars, and reduces potential disturbances to wildlife. By focusing on these specific metrics (backlight, uplight, and glare), design teams can promote responsible lighting practices that align with LEED's sustainability goals.

Other options, while related to lighting design, do not directly address the criteria for light pollution reduction. For instance, selecting luminaires without lamps or those with high lumen outputs may not necessarily correlate with reduced light pollution, as these choices could result in excessive light or inappropriate distribution. Similarly, luminaires that minimize glare are important but are only one aspect of the overall approach required to decrease light pollution. Thus, choosing luminaires focused on low BUG ratings stands out as the most effective choice for achieving the goal of this credit.