Green Seal operates in the U.S.market. Other countries have their own green certification programs - some run by the government and others by independent organizations.
VOA: standard.2009.03.30
The lime-green devices run on electromotive energy from a wind-up mechanism--thus allowing the machines to be used in areas lacking a regular power supply.
The city buses are colour-coded to instantly telegraph what type of route they ply: red buses are express, green buses run short routes between subway stations and other points.
As each company seeks to be greener than the next, so demand is growing to get buildings certified by the Leadership in Energy Efficiency and Design programme (LEED), America's biggest green rating system, run by the not-for-profit Green Building Council.