Hi James,
I have not yet submitted a model under the new version of LEED NC or for any commercial project for that matter, but I will share how these savings are accounted for under the LEED for Homes Midrise program for residential apartments 4-6 stories in height. This program references the ENERGY STAR High Rise program.
Savings can be taken for the following items:
-Low flow lavatory faucets
-Low flow shower heads
-ENERGY STAR dishwashers
-ENERGY STAR clothes washers
Please see Section 3.11 of the attached standard for savings calculations. Given the different use profiles, I wouldn't use these guidelines for anything other than multifamily residential, but I hope they are of some help.
Good luck,
Robert Stephenson, LEED AP