9 eventuality, especially those detrimental to health and economic situation of the citizens of Colombia, the goal being individual wellbeing and community integration.”8 Specifically, Article 10 provides that one of the objectives of the overall pension system “is to guarantee that the public is protected against contingencies resulting from old age, disability and death.” Article 15 provides that enrollment in the pension system is mandatory for persons with an employment contract. 42. Articles 47 and 74 of Law 100 of 1993 —as drafted at the time of the events in this case— establish the following as beneficiaries of the survivor’s pension. a) For life, the surviving spouse or permanent partner. In the event that the survivor’s pension is triggered by the death of the pensioner, the surviving spouse or permanent partner must prove that he or she was living in marital union with the predecessor in title, at least from the time that the latter met the requirements to qualify for an old-age or disability pension and until the time of his or her death, and has cohabited with the deceased for at least two continuous years prior to his or her death, unless the surviving spouse or permanent partner has had one or more children by the deceased pensioner.[…] 43. Article 1 of Law 54 of December 28, 1990, which regulates de facto marital unions and the property regime between permanent partners, defines a de facto marital union as the union between a man and a woman who, without being married, enter into a permanent and exclusive community. Also, and for all civil effects, a partner or permanent partner shall be 9 understood to be the man or woman who is half of the de facto marital union. 44. Similarly, Decree 1889 of August 3, 1994, which regulates Law 100 of 1993, provides as follows: ARTICLE 10. PERMANENT PARTNER. For purposes of the enrollee’s survivor’s pension, the permanent partner shall be the last person of the opposite sex to the enrollee, who has lived in marital union with him or her for a period of no less than two (2) years. This is with respect to a pensioner who satisfies the requirements spelled out in paragraph a) of articles 47 and 74 of Law 100 of 1993. ARTICLE 11. PROOF OF PERMANENT PARTNER STATUS. Anyone whom an enrollee has listed with the respective administrative institution as being his or her permanent partner shall be presumed to be such. Permanent partner status may also be proven by the means that the law prescribes. In any event, the administrative institutions shall specify in their regulations what 10 constitutes suitable proof in order to move forward with the respective procedure. 45. Furthermore, in the case of the General Social Security Health Services System, Article 157 of Law 100 of 1993 establishes two types of enrollees, namely: 8 Law 100 of 1993, preamble. Available [in Spanish] at: http://www.secretariasenado.gov.co/senado/basedoc/ley/1993/ley_0100_1993.html. 9 Law 54 of 1990. Available [in Spanish] at: http://www.alcaldiabogota.gov.co/sisjur/normas/Norma1.jsp?i=30896. 10 The last sentence was declared null by the Council of State in a decision of October 8, 1998, file 14634, C.P. Dr. Javier Díaz Bueno. Decree 1889 of 1994. Available [in Spanish] at: http://www.alcaldiabogota.gov.co/sisjur/normas/Norma1.jsp?i=31246.