building projects or existing buildings not required to achieve certification, commissioning should be <br />evaluated on a case-by-case basis, and implemented if there will be an overall positive benefit. <br />Commissioning is not expected to be of benefit for non-occupied buildings, due to the minimal electrical <br />and mechanical systems typically used in un-staffed facilities. <br />What are the Exemptions? _ <br />~~echr~ical e~empt,ons havo been d,scu45ec~~ilxwe~related to limitations due to fun~lin~~ :;uurcesF~and tyi~c <br />of constructi~~n lhatlacks buildings~~st~is ne~cdcc~certiFication. For `certiliable" projcctsl any policy <br />may have unintended ,consequences when applied to "real life" situations. Exemptions should be <br />designed to allow resolution of unforeseen problems, while supporting the underlying goal of the original <br />policy. ~ <br />An important underlying assumption is that sustainable buildings hake significantly lower ongoing <br />operations and maintenance costs. Some sustainable building pry tices may ktave higher initial costs, <br />compared to standard construction practices. The more "cutttm edge" iL1.~e F:technology-such as <br />photovoltaics or building-scale wind generation the hi her this initial cost preuiiun~ may be. Using <br />LEED criteria as a standard will help achieve the exp d long-t cost savings, ~ t LED rating <br />system emphasizes efficiencies in building heating, c~olin~ -and elec , al systems, reduced ~ ater use and <br />low-maintenance finishes and grounds that significantly reduce olnratir ghosts. <br />However, the expectation that sustainable 1uilding practices caii ,bc "cost neutral" may not be true in all <br />cases. The recommendation is that, in the case ~~iere certification at e Silver level is not cost-neutral, <br />the requirement for certification may be deceased to a "Certified" lov~el r Waived a) if those costs are <br />more than 10%. above the estimated cost of cc1T Struction ~4 i'rhout. those , asures or b) if the additional <br />costs are not eligible to be covered by the proje fundir ~ouie: To nsure the application of this ex- <br />emption is used judiciously, a ~iding of the need f~~r cc` ificatio~~ at }over than the Silver level or waiver <br />of the certification requirement w,l l be made availableto the public prior to construction of a project. <br />x <br />[Alternate exemptio ~n~ua~e suggest d by Brad& B~b~ b)!,if the snstainability and certification goals <br />and requirements have :not f~ecn t7~rii~lly accepted b ° the organization providing external funding, <br />c) there is a significant r-cciuction in ~,pe r capital funds due to unforeseen external <br />conditions; art~3 d) i~t}~e C'ii.~ llana~cr- rfete~ that the interest of the public is best served by an <br />exemption; j ~ _ <br />Politi , <br />The Cite c>f C_;uRen~~e shall iria~rporate principles of sustainability in the planning, fmancing, design, <br />consmiction. d~~ration and ~rraintenanee of City buildings and associated facilities. 'ln addition, tu~j <br />projects lowhich cation is technica}1v f~.asihl <br />a. All new construction and additions encompassing 5,000 gross square feet or more of building <br />area shall achieve the equivalent of a Silver certification level 'of the U.S. Green Building <br />Council's LEEDTM Green Building Rating System for New Construction (LEED-NC). A <br />higher equivalent rating (Gold or Platinum) should be sought where practicable. <br />b. Building renovation projects of 5,000 gross square feet or larger will be evaluated for certifica- <br />tion on a case-by-case basis, and the feasibility of incorporating sustainable features within the <br />context of the existing building will vary widely from project to project. <br />New construction, additions, renovations and additions encompassing less than 5,000 gross <br />square feet of building area shall use LEED-NC as a guide. <br />6 <br />