The Center acquired the microfilm collection of the Diario oficial do Estado de Sao Paulo for 1891-1985, filmed by Imprensa Oficial do Estado S/A. The complete collection is comprised of 264 35mm reels and 1,123 16mm reels. This newspaper provides a complete record of the affairs of the state government of Sao Paulo; to have legal effect in Brazil, all government laws and decrees must be printed in this publication. The Diario oficial printed the debates of the state legislature and notices and decisions of the judicial system. In the post-1930 period, it also printed the major laws, regulations and decisions of the expanding network of federal agencies and electoral and labor courts in Sao Paulo.