Law No. 51/2008 on compulsory information regarding primary Energy sources used. País/Territorio Portugal Tipo de documento Legislación Fecha 2008 Fuente FAO, FAOLEX Fuente original Diário da República, 1.ª série, No. 165, 27 August 2008, p. 6043. Materia Energía Palabra clave Acceso-a-la-información Legislación básica Conservación de energía/producción de energía Comercio internacional Área geográphica Europa, Europa y Central Asia, Países de la Unión Europea, Atlántico Norte, Atlántico Nordeste, Europa Meridional Entry into force notes This Law enters into force 180 days after its publication. Resumen This Law is composed of six articles. It requires compulsory information regarding the primary energy source used by all energy traders operating in the national energy market (electricity, gas, oil and other fossil fuels). In particular, the Law compels detailed billing information and regulates publicity and information methods required. Texto completo Portugués