▁as ▁helping ▁to ▁support ▁the ▁development ▁of ▁sust ain ability ▁metrics ▁for ▁urban ▁development . ▁ ▁Pol ic ies ▁and ▁programs ▁The ▁E PA ▁has ▁created ▁over ▁ 2 5 ▁policies ▁and ▁programs ▁to ▁help ▁with ▁urban ▁sust ain ability , ▁r anging ▁from ▁" Build ing ▁America " ▁which ▁works ▁with ▁the ▁resident ial ▁building ▁industry ▁to ▁develop ▁and ▁implement ▁building ▁processes ▁that ▁save ▁build ers ▁and ▁home own ers ▁millions ; ▁to ▁" Sm art ▁G row th ▁and ▁School s " ▁which ▁gives ▁information ▁on ▁the ▁princip als ▁of ▁smart ▁growth ▁to ▁plan ▁educational ▁facilities ; ▁to ▁" W aters hed " ▁which ▁shows ▁how ▁using ▁a ▁waters hed ▁approach ▁can ▁help ▁to ▁protect ▁our ▁water ▁resources . ▁One ▁of ▁the ▁more ▁successful ▁programs ▁the ▁E PA ▁util izes ▁is ▁the ▁" Green ▁Building " ▁program . ▁Green ▁Building ▁is ▁the ▁practice ▁of ▁building ▁structures ▁and ▁using ▁methods ▁that ▁are ▁environment ally ▁responsible ▁and ▁resource - efficient . ▁Many ▁aspects ▁go ▁into ▁Green ▁Building ▁such ▁as ▁the ▁design , ▁construction , ▁operation , ▁maintenance , ▁renov ation ▁and ▁de const ruction . ▁This ▁program ▁helps ▁to ▁bring ▁aw aren ess ▁to ▁Green ▁Building ▁and ▁create ▁health ier , ▁more ▁resource - efficient ▁aspects ▁of ▁construction . ▁ ▁Research , ▁tools ▁and ▁technology ▁The ▁sust ain ability ▁sector ▁of ▁the ▁E PA ▁has ▁helped ▁with ▁research , ▁tools ▁and ▁technology ▁of ▁the ▁built ▁environment ▁in ▁many ▁ways . ▁One ▁of ▁the ▁many ▁tools ▁they ▁have ▁helped ▁to ▁create ▁is ▁the ▁Tools