Eddie Jones has been announced as England's first ever overseas head coach.
The former Australia and Japan coach had travelled to London for talks with the Rugby Football Union and, with the level of compensation for his release from his Stormers contract believed to have been negotiated, the 55-year-old's four-year contract was completed on Friday morning.
He said: "The opportunity to take the reins in possibly the world's most high-profile international rugby job doesn't come along every day, and I feel fortunate to be given the opportunity."
Jones succeeds Stuart Lancaster, who stepped down from his role on November 11 after presiding over England's woeful pool stage exit at the World Cup.
RFU chief executive Ian Ritchie targeted a head coach of "proven international experience" - with the likes of Jones, Michael Cheika and Wayne Smith immediately linked with the post.
Jones has won tournaments in his native Australia while he was brought in to strengthen South Africa's coaching team for the 2007 World Cup, playing an advisory role during a campaign that finished with the Springboks lifting the Webb Ellis Cup for the second time.
He will be announced to the media at a press conference later today and will begin his job in December, with his first game set to be the RBS 6 Nations encounter against Scotland on February 6.
Jones, whose CV also includes a spell with Saracens, must finalise the identity of his assistants with Bristol forwards coach Steve Borthwick expected to join him.
He added: "I'm now looking forward to working with the RFU and the players to move beyond the disappointment England suffered at the World Cup and hope to build a new team that will reflect the level of talent that exists within the English game.
"I believe the future is bright for England."