LDII is the Indonesian Islamic da'wah institution, an official and legal social organization that follows the provisions of law no. 8 of 1985 concerning community organizations, and their implementation includes PP no. 18 of 1986 and the minister of home affairs regulation No. 5 of 1986. The Indonesian Islamic Da'wah institute (LDII) has articles of association (AD) and bylaws (ART), work programs and administrators from the central level to the village level. LDII has been registered with the national unity and community protection agency (Bakesbang & Linmas) of the ministry of Home affairs.