Serbia's government fell after Milošević's defeat, and a new parliamentary election was held in December 2000. Prior to the election, Serbia's electoral laws were reformed such that the entire country was counted as a single division and all mandates were awarded to candidates on successful lists at the discretion of the sponsoring parties or coalitions, irrespective of numerical order.Serbia's Law on the Election of Representatives (2000) stipulated that parliamentary mandates would be awarded to electoral lists (Article 80) that crossed the electoral threshold (Article 81), that mandates would be given to candidates appearing on the relevant lists (Article 83), and that the submitters of the lists were responsible for selecting their parliamentary delegations within ten days of the final results being published (Article 84). See Law on the Election of Representatives, Official Gazette of the Republic of Serbia, No. 35/2000, made available via LegislationOnline, accessed 28 February 2017. Simić appeared in the 102nd position on the DOS's list and was given a mandate after the coalition won a landslide victory with 176 out of 250 seats.Избори за народне посланике Народне скупштине одржани 23. децембра 2000. године и 10. јануара 2001. године – ИЗБОРНЕ ЛИСТЕ (4 Демократска опозиција Србије – др Војислав Коштуница (Демократска странка, Демократска странка Србије, Социјалдемократија, Грађански савез Србије, Демохришћанска странка Србије, Нова Србија, Покрет за демократску Србију, Лига социјалдемократа Војводине, Реформска демократска странка Војводине, Коалиција Војводина, Савез војвођанских Мађара, Демократска алтернатива, Демократски центар, Нова демократија, Социјалдемократска унија, Санxачка демократска партија, Лига за Шумадију, Српски покрет отпора – Демократски покрет), Republic Election Commission, Republic of Serbia, accessed 2 July 2021. His term began when the assembly convened in January 2001.PRVA KONSTITUTIVNA SEDNICA, 22.01.2001., Otvoreni Parlament, 11 January 2001, accessed 18 July 2021. He served on the committee for relations with Serbs outside Serbia, the committee for trade and tourism, and the committee for Kosovo and Metohija.ДЕТАЉИ О НАРОДНОМ ПОСЛАНИКУ: СИМИЋ , РАДОЈЕ , National Assembly of the Republic of Serbia, accessed 9 October 2022.
