Page 26 - The Engineering Guide to LEED-New Construction Sustainable Construction for Engineers

Intr oduction 9

Application Status as of February 2010
LEED for multiple buildings/campuses Guide available
LEED for lodging (<4 stories) Developed by USAF but not adopted by
USGBC membership
LEED for healthcare Under development as its own rating system
LEED for labs No longer listed on USGBC site

TABLE 1.2.1 Application Guidances

They are referred to as application guides. Table 1.2.1 is a listing of several of the
guidances formerly developed or being developed.
These guidances serve many purposes. They serve to aid in modifying or
embellishing criteria for specific credits when it may be difficult to apply the credit
directly as written for a particular type of project, and they also identify some items that
may be used for a particular project type for one of the Innovation & Design credits.
Chapter 9 is a special section on the U.S. military and sustainable construction and
explores in greater detail how one of the guidances, LEED for Lodging, may relate to
LEED-NC, with particular emphasis on indoor air quality. For any project that deals
with any of these special applications, the guidances should be used in conjunction
with the LEED-NC 2009 rating system.
How LEED-NC Is Set Up
LEED-NC contains minimum program requirements (MPRs), credits, and prerequisites.
The minimum program requirements are new to LEED 2009 and cover some minimum
conditions for a project to be eligible to register for the LEED-NC certification process.
These will be covered in Chap. 8. All eight prerequisites in LEED 2009 (and all seven in
LEED 2.2) are mandatory for each project. None of the credits (worth up to 69 points from
these credits in LEED 2.2 and up to 110 points in LEED 2009) are mandatory except for a
couple of energy efficiency points in LEED 2.2. The credits are worth a certain number of
points, and a combination of credit points adds up to a certain level of certification. The
levels of certification, the number of points and the number of prerequisites associated
with each level are as listed in Table 1.2.2 for both LEED 2.2 and LEED 2009.
LEED-NC is subdivided into five main categories for which there are sometimes
prerequisites, subcategories, and credits representing possible points in both versions.
Some of the credits have one associated point, but many credits are multipoint. There is
an additional category for Innovation in Design (ID) in both the rating systems, and a
new category to emphasize credits which are priorities in various regions of the United
States (RP) in LEED-NC 2009. The seven categories and their associated numbers of
prerequisites, subcategories, and possible points (excluding exemplary performance
points associated with that category) in LEED 2009 are as noted (with former values for
LEED 2.2 in parentheses):
• Sustainable Sites (SS) in LEED 2009
• Prerequisites: 1 (1 in LEED 2.2)
• Subcategories: 8 (8 in LEED 2.2)
• Possible points: 26 (14 in LEED 2.2)