Breivik reportedly was calm when his attorneys read him the document in Ila Prison before the prosecutors read some of the 19-page document and conducted a news conference, The Foreigner reported.
Breivik is charged with carrying out acts of terror in a bombing in downtown Oslo and a shooting spree on Utoya Island. Eight people died in the downtown explosion and 69 people were killed in the massacre on the island.
He is also accused of premeditated murder. Under the so-called "terror paragraph" for the first time in Norway's history, prosecutors claimed he disrupted society and created fear, The Foreigner said.
During the news conference, prosecutor Inga Bejer Engh presented a timeline of events leading to the bombing and shooting spree. Among other things, Engh said Breivik's car contained approximately a half-ton of explosives, mainly artificial fertilizer, diesel fuel, and aluminum.
Meanwhile, the question of whether Breivik was sane at the time of the attacks remained under review and would be brought up at trial, The Foreigner said. He has had several psychiatric evaluations and hearings since his arrest.
Defense counsel Geir Lippestad said questions about Breivik's sanity will be a key part of his defense. He has said he carried out the attacks to make Norway aware of the threat of militant Islam.
"Two experts believe that he was insane [at the time of his actions], but my client thinks he was sane," Lippestad told NRK.
The attorney also said Breivik's confession that he allowed people on Utoya to live is grounds for seeking a reduced sentence. The indictment indicated 564 people were on the island attending a political camp.
"It is a fact that he has cooperated with the police all the way," Lippestad said. "My client has made no secret of what he has done, on the contrary he has been very open."