ENERGY STAR Certification: ENERGY STAR is a program that certifies products (such as appliances) that meet high-energy performance standards set by the Environmental Protection Agency (EPA).
Renewable Portfolio Standards (RPS): RPS are policies implemented at the state level that require utilities companies to obtain a certain percentage of their electricity from renewable sources.
Green Building Certification (LEED): LEED stands for Leadership in Energy and Environmental Design. It is a certification program that recognizes buildings for meeting specific sustainability and energy efficiency criteria.