Massachusetts tops the list of leading states making strides in certified green building projects.

The U.S. Green Building Council (USGBC) recently released its annual Top 10 States for LEED, as reported by For Construction Pros. The annual ranking highlights states that made significant advances in sustainable design, construction and transformation over the past year.

The ranking assesses the total square feet of LEED-certified space per resident based on U.S. Census data, and includes commercial buildings certified during 2016. Massachusetts moved from third to first place, with a total of 136 LEED-certified projects representing 3.73 square feet of certified space per resident. With the annual ranking now in its seventh year, LEED is the world’s most widely used and recognized green building rating system:

“LEED guides our buildings, cities, communities and neighborhoods to become more resource- and energy-efficient, healthier for occupants and more competitive in the marketplace,” said Mahesh Ramanujam, president and CEO of USGBC. “The green building movement continues to evolve with advancements in technology, benchmarking and transparency, and the states on this list are leading the way toward a more sustainable future.”

While Massachusetts took the top spot, For Construction Pros notes that Illinois and Colorado are the only two states to have made the list every year since 2010. Also worth noting is the fact that this year’s list has the highest average square feet per capita (2.55) of LEED-certified space among the top 10 states since 2010. Get the LEED rankings in the full article.