LEAWOD USA bazi yakawana NFRC yepasirese gonhi uye hwindo chitupa, LEAWOD zviri pamutemo wepasirese gonhi uye hwindo brand kumberi.
Nekushaikwa kwesimba kuri kuwedzera, kuvandudzwa kwesimba rekuchengetedza magonhi neWindows, The National Fenestration Rating Council (NFRC) neEnergy Star Programme yeUS Department of Energy neEPA vanga vachipa certmal performance yemagonhi neWindows kubvira 1989. The NFRC, sangano risingabatsiri rakatora simba idzva Consumption performance label muUS 200RC rinowanzoda 20 gonhi re20RC. zvigadzirwa zvehwindo. Uye zvakare, NFRC certification inhanho inodiwa yakanangana neEnergy Star certification. Nhanho nyowani, LEAWOD ichakwikwidza neakanakisa magonhi epasi uye maWindows mabhizinesi, huya, akagadzirwa muChina.