Chapter XII
AMENDING THE CONSTITUTION

Article 235

  1. A bill to amend the Constitution may be submitted by the following: at least one-fifth of the statutory number of Deputies; the Senate; or the President of the Republic.
  2. Amendments to the Constitution shall be made by means of a statute adopted by the Sejm and, thereafter, adopted in the same wording by the Senate within a period of 60 days.
  3. The first reading of a bill to amend the Constitution may take place no sooner than 30 days after the submission of the bill to the Sejm.
  4. A bill to amend the Constitution shall be adopted by the Sejm by a majority of at least two-thirds of votes in the presence of at least half of the statutory number of Deputies, and by the Senate by an absolute majority of votes in the presence of at least half of the statutory number of Senators.
  5. The adoption by the Sejm of a bill amending the provisions of Chapters I, II or XII of the Constitution shall take place no sooner than 60 days after the first reading of the bill.
  6. If a bill to amend the Constitution relates to the provisions Chapters I, II or XII, the subjects specified in para. 1 above may require, within 45 days of the adoption of the bill by the Senate, the holding of a confirmatory referendum. Such subjects shall make application in the matter to the Marshal of the Sejm, who shall order the holding of a referendum within 60 days of the day of receipt of the application. The amendment to the Constitution shall be deemed accepted if the majority of those voting express support for such amendment.
  7. After conclusion of the procedures specified in para 4 and 6 above, the Marshal of the Sejm shall submit the adopted statute to the President of the Republic for signature. The President of the Republic shall sign the statute within 21 days of its submission and order its promulgation in the Journal of Laws of the Republic of Poland (Dziennik Ustaw).