The March 12-15 tournament will be played at Doral, site of three victories in Woods' professional career. He took home the title every year from 2005 to 2007 and finished fifth last year.
Unlike at the WGC-Match Play, Woods is assured four rounds because the event doesn't have a 36-hole cut. He hasn't played a full 72-hole tournament since his 91-hole U.S. Open playoff victory last June at Torrey Pines.
Overall, Woods owns 15 World Golf Championship titles and has never finished outside the top 10 in his career at Doral.
He made the announcement on his Web site and it was confirmed by PGA Tour officials.
For the second straight World Golf Championship, every eligible player has entered the tournament. The 77-man field at Doral was determined by the top 50 in the world ranking and top players from money lists around the world. Players still can qualify after this week if they move into the top 10 in the FedEx Cup standings on the PGA Tour or The Race to Dubai in Europe, or if they are in the top 50 in the world ranking published Monday.
Geoff Ogilvy, the Match Play champion for the second time in four years, is the defending champion at Doral. Ogilvy won last year by one shot over Retief Goosen, Jim Furyk and Vijay Singh, with Woods another shot behind.
"Tiger returning to the CA Championship for his first stroke-play event since getting injured is absolutely huge for the south Florida community," tournament director Eddie Carbone said.