The modified bonus-point system introduced into Super Rugby this season will be adopted for the upcoming Rugby Championship.
Teams will be awarded a bonus point for finishing three or more tries ahead of their opponent, replacing the old system of a bonus point for scoring four or more tries.
The bonus point for losing by seven or fewer points remains unchanged.
SANZAAR has also confirmed that Twickenham will host its first Rugby Championship match with the Wallabies facing Argentina in a Pumas' home game.
That match, which is the final game of the Championship, will be played on October 8.
Australia opens their title defence in a clash with world champions New Zealand in Sydney on August 20 before the teams meet again seven days later in Wellington.
On September 10, the Wallabies host South Africa in Brisbane and the following week they play Argentina in Perth.
Australia then play the Springboks in Pretoria on October 1 before the London match.