Composition

Section 68.1 of the Spanish Constitution establishes that the Congress of Deputies must be composed of among 300 deputies at least and 400 deputies at most. At present, the house has 350 deputies which is determined by the General Electoral Regime Organic Act, which was approved in 1985.

Electoral system

Deputies per constituency set for the general election of 2023

The Spanish Constitution establishes that the deputies are chosen by universal, free, equal, direct, and secret suffrage. The election is held every four years or earlier in case of snap election. The members of the Congress are elected by proportional representation with closed lists in each constituency.

There are 50 multi-member constituencies for the Congress of Deputies which belong to the 50 provinces of Spain and the two single-member constituencies which belong to two autonomous cities (Ceuta and Melilla). According to the Spanish Electoral Act, each province shall be represented by at least two deputies, thus 102 deputies already apportioned. The remaining 248 deputies are allocated proportionally by constituency. This distribution can change in each election and it is specified when writs of election are issued. After the General Election, seats are assigned to the electoral lists in each constituency in each constituency separately, using the D'Hondt method; parties receive seats in approximate proportion to the number of votes each received in the constituency. A strictly proportional system would result in fractional seats. The D'Hondt method resolves this by favoring parties receiving larger votes.

The 1985 General Electoral Regime Act establishes a 3% minimum valid votes by constituency requirement (blank votes count towards the total votes, but invalid ballots do not count) for a party to participate in the seat distribution for a constituency. This applies to the provinces that elect at least 24 deputies. At present, this condition applies only to Madrid and Barcelona.

In March 2011, the General Electoral Regime Organic Act was remodeled, requiring parties that are not represented either in Congress or in the Senate to collect signatures to support their candidacy to be able to run in the election. One-tenth of a percent of those registered to vote in a constituency are required to be on the ballot and each citizen can sign only once for a party candidacy. The Electoral Board establishes the regulations for collection of signatures.

Mandate

The deputies' term of office finishes four years after their election or when the Cortes are dissolved, which can take place jointly or separately with the dissolution of the Senate. The dissolution's right belongs to the Monarch who exercises it by request of the President of the Government after the deliberation of the Council of Ministers and under its sole responsibility. The dissolution of the Cortes also takes place if there is a failed legislature or two months after a failed investiture session, in this case the Sovereign dissolves the house with the countersign of the President of the Congress of Deputies. During their mandate, the deputies have some guarantees and privileges to carry their responsibilities out according to Section 97 of the Spanish Constitution.

Governing bodies

The governing bodies of the Congress of Deputies are the bodies which under their authority the House is manage. Those bodies are the President, the Bureau and the Board of Spokespersons.^[3]

The President of the Congress of Deputies is the highest authority and it represents the House and it is, de facto, the whole parliament leader. As head of the Congress, it also chairs the Bureau, the Board of Spokespersons and the Permanent Deputation, and is the maximum responsible authority of the Congress' Police.^[4][5]

The Bureau of the Congress of Deputies is the collective body that represents the House and manages the day-to-day of the Chamber, preparing the budget and making all the necessary decisions to allow the proper functioning of the functions of the Congress.^[6]

The Board of Spokespersons of the Congress of Deputies is the collective body formed by representatives of the parliamentary groups and normally, government representatives, that establishes the agenda of the House.

Working bodies

The working bodies of the Congress of Deputies are the Plenary, the Committees, the Permanent Deputation and the Parliamentary Groups.^[7]

The Plenary is the central body of the Congress of Deputies which allows the house for exercising their choices. It is the reunion of all the members of the Parliament when half plus one of its members are attending the house. This body represents the unity of the house and it works through the plenary sessions which can be ordinary or extraordinary.

The ordinary sessions take place during the two meeting terms: September to December and February to June. They are convened by a calendar which has already been set. The extraordinary sessions are convened at the request of the President of the Government, the Permanent Council or the absolute majority of the house. In this kind of sessions a particular agenda is presented and the sessions end when all items have been treated.

The Committees are the basic working bodies of the Congress. They are composed of a proportional number of deputies depending on the numerical importance of the parliamentary groups of the house. The committees are classified as follows: permanent or non-permanent and legislative or non-legislative.

The permanent legislative committees examine and rule the projects and bills. The Plenary of the Congress can confer them full legislative power in relation to a matter, so they can permanently approve or reject any project or bill. The regulations of the Congress establish 17 permanent legislative committees. The permanent non-legislative committees have responsibilities not related to the legislative production. The regulations of the Congress establish 3 permanent non-legislative committees, and they allow the Plenary to create another ones at the beginning of each legislature. The non-permanent committees are created with a specific purpose and their themes and duration are beforehand determined by the Plenary of the Congress.

The Permanent Deputation is a body created in order to have a permanent constituted legislative power. It is responsible for safeguarding the powers of the house between the legislative sessions (January, July and August) or when their term has finished because of termination or dissolution. In these three cases, the Permanent Deputation is a temporary extension of the house. The Permanent Deputation is presided by the President of the Congress. It is composed of a proportional number of deputies depending on the numerical importance of the different Parliamentary Groups.

The Parliamentary Groups are groups of members of the house which join depending on their ideology.^[7] The Rules of the Congress establish that 15 deputies at least are needed to make a parliamentary group. However, they can make a group if they are at least 5 deputies and they have got at least 15% of the total votes of the constituency where they have run at or 5% of the total votes of the country.^[8] The formation of the parliamentary groups takes place at the beginning of each legislature. The deputies who do not enrol in any parliamentary group constitute the Mixed Group.

Permanent Legislative Committees

Permanent non-Legislative Committees