Ley número 66/97 de 30/12/1997, de Medidas Fiscales, Administrativas y del Orden Social. Boletín Oficial del Estado número 313 de 31/12/1997 Página 38517 (Marginal 28053)

This Spanish national law introduces a set of fiscal, administrative, and social reforms. It focuses on adjusting tax regulations and public administration processes to improve government efficiency and social welfare standards. The law affects Spanish taxpayers, public administration bodies, and individuals benefiting from social security or welfare programs through updated fiscal requirements and administrative procedures.