Energy Star
Energy Star is a United States government program to promote energy efficient consumer products. It is well known for its logo appearing on many computer products and peripherals, though on many European-targeted products, TCO Certification, a combined energy usage and ergonomics rating from the Swedish Confederation of Professional Employees (TCO), is used instead. The reference article:
EuP: The eco-design of Energy-using Products
 Eup, such as electrical and electronic devices or heating equipment, provides coherent EU-wide rules for eco-design and ensure that disparities among national regulations do not become obstacles to intra-EU trade. The Directive does not introduce directly binding requirements for specific products, but does define conditions and criteria for setting, through subsequent implementing measures, requirements regarding environmentally relevant product characteristics (such as energy consumption) and allows them to be improved quickly and efficiently. Products that fulfil the requirements will benefit both businesses and consumers, by facilitating free movement of goods across the EU and by enhancing product quality and environmental protection. The Directive constitutes a breakthrough in EU product policy and introduces many innovative elements together with concrete application of the principles of the “better regulation” package.
RoHS: Restriction of Hazardous Substances Directive
 RoHS was adopted in February 2003 by the European Union and took effect on July 1, 2006. This directive restricts the use of six hazardous materials in manufacture of various types of electronic and electrical equipment. It is closely linked with the Waste Electrical and Electronic Equipment Directive (WEEE) 2002/96/EC which sets collection, recycling and recovery targets for electrical goods and is part of a legislative initiative to reduce amounts of toxic wastes.
WEEE: The Waste Electrical and Electronic Equipment Directive
 WEEE Directive is the European Community directive 2002/96/EC on electrical and electronic equipment wastes. Together with the RoHS Directive 2002/95/EC, it became European Law in February 2003. The directive imposes responsibility on manufacturers to properly disposal of waste electrical and electronic equipments (WEEE). Those companies should establish an infrastructure for collecting WEEE, in such a way that “Users of electrical and electronic equipment from private households should have the possibility of returning WEEE at least free of charge”. Also, the companies are compelled to dispose of the waste in an ecological-friendly manner, either by ecological disposal or by reuse/refurbishment of the collected WEEE.