The Congress Statute Law issued before June 20, 2005. It halved the terms for the prior review of the constitutionality of the Statute Law Project, by the Constitutional Court. If Congress is not issued the law in the period specified or the bill is declared unconstitutional by the Constitutional Court, the State Council, within two (2) months transiently regulate the matter. (Article Amended by Decree 2310 of 2004) Article 153. The approval, amendment or repeal of the statutory laws require an absolute majority of members of Congress and must be made within a single term. This process will include preliminary review by the Constitutional Court of the constitutionality of the project. Any citizen may intervene to defend or challenge. ARTICLE 154.

Laws may originate in either House nominated by their respective members, the National Government of the entities referred to in Article 156, or by popular initiative in the cases provided for in the Constitution. However, they may only be issued or amended on the initiative of the Government the laws referred to in paragraphs 3, 7, 9, 11 and 22 and subparagraphs a, b and e, of paragraph 19 of Article 150, the ordering shares in national incomes or transfers of the same, the contributions or subscriptions to authorize the state to industrial or commercial enterprises and enact tax exemptions contributions or national rates. The Chambers may make changes to projects submitted by the Government. Bills relating to taxation shall begin proceedings in the House of Representatives and those relating to international relations in the Senate.