 Approximately of water a year are saved with the use of 249 waterless urinals.An early aim of the new ballpark was to become the first retractable-roof ballpark to be Silver Certified by Leadership in Energy and Environmental Design (LEED).On May 25, 2012, Marlins Park surpassed that goal by officially becoming the first MLB stadium—and the first retractable-roof stadium in any sport—to achieve LEED Gold Certification, anointing the facility as the most sustainable ballpark in MLB.