Green buildings.
Applicants whose buildings and/or site development achieve certification by the U.S. Green Building Council (USGBC) at or above the "silver" level rating as defined by the Leadership in Energy and Environmental Design (LEED) Green Building Rating System are eligible for bonus square footage. The maximum additional floor area ratio for such certification shall not exceed 0.2 times the gross tract area. The tract area shall exclude existing utility rights-of-way and existing road rights-of-way. The standard shall be LEED-NC Version 2.2 for new construction, LEED-CI Version 2.0 for interior improvements to existing commercial spaces, and LEED-ND Version 2.0 for neighborhood development, or as such standards are most recently amended. Applicants are strongly encouraged to achieve the highest LEED's certification possible in multiple categories.