One month at least and two months at most before the expiration of the term of office of the President of the Republic, the Chamber shall be convened by its President to elect the new President of the Republic. However, should it not be convened for this purpose, the Chamber shall meet automatically on the tenth day preceding the expiration of the President's term of office.

Should the Presidency become vacant through the death or resignation of the President or for any other cause, the Chamber shall meet immediately and by virtue of the law to elect a successor. If either Chamber happens to be dissolved at the time the vacancy occurs, the electoral bodies shall be convened without delay and, as soon as the elections have taken place, the Chamber meets by virtue of the law.

The Chamber meeting to elect the President of the Republic shall be considered an electoral body and not a legislative assembly. It must proceed immediately, without discussion of any other act, to elect the Head of the State

The constitution may be revised upon the suggestion of the President of the Republic. In such a case the Government submits a bill to the Chamber of Deputies.

The constitution may also be revised upon the request of the Chamber of Deputies. In this such the following procedures shall be observed: During an ordinary session and upon the proposal of at least ten of its members, the Chamber of Deputies may propose, by a two-thirds majority of the total members lawfully composing the Chamber, the revision of the constitution. However, the articles and the issues referred to in the proposal must be clearly defined and stated. The President of the Chamber shall then transmit the recommendation to the Government requesting it to prepare a bill relating thereto. If the Government approves the proposal of the Chamber by a majority of two thirds, it must prepare the draft amendment and submit it to the Chamber within four months; if it does not approve, it shall return the Decision to the Chamber for reconsideration. If the Chamber insists upon the proposal by a three-fourths majority of the total members lawfully composing the Chamber, the President of the Republic has then either to comply with the Chamber’s recommendation wish ask the Council of Ministers to dissolve the Chamber and to hold new elections within three months. If the new Chamber insists on the necessity of amendment, the Government must acquiese and submit the draft amendment within four months.

When a bill dealing with a constitutional amendment is submitted to the Chamber, it must confine itself to its discussion before any other work until a final vote is taken. It may discuss and vote only on the articles and the questions clearly enumerated and defined in the bill submitted to it.

When a bill law dealing with a constitutional amendment is submitted to the Chamber, it cannot discuss it or vote upon it except when a majority of two thirds of the members lawfully composing the Chamber are present. Voting shall like wise be by the same majority. The President of the Republic shall be required to promulgate the law of the constitutional amendment under the same conditions and in the same form as ordinary laws. He shall have the right within the period established for the promulgation, to ask the Chamber to reconsider the bill, in which case the vote is by a majority of two thirds majority.