The Socialist Vanguard Party (Parti de l'Avant-Garde Socialiste--PAGS), although not legally recognized, has persisted as a political opposition party throughout the single-party period. As an outgrowth of the Algerian Communist Party (Parti Communiste Algérien--PCA), which disappeared soon after Algerian independence, the PAGS has consistently opposed the government, offering sharp criticism of all political leaders and most of their programs. Its members, referred to as "Pagsistes," have infiltrated almost every legally recognized mass association despite their unofficial status. The Pagsistes have been especially prominent in such organizations as the UNJA and UGTA, encouraging leftist tendencies. The legalization and proliferation of political parties in 1989 in practice annulled the necessity of PAGS's continued existence the Pagsistes essentially disappeared into the plethora of nationally recognized opposition groups. No communist party or political association has been legally recognized.

Data as of December 1993