Rugby Australia Director of Rugby Scott Johnson said the rules were to add "some new attacking dimensions to the game".
"The level of engagement was outstanding from the players and coaches involved in the process and we ended up with a set of law variations that were unanimously agreed upon by all 24 people involved," he said in a press release.
"A couple of the variations including the 50/22 and 22/50s have been trialled previously in the NRC and we have added some principles around line dropouts to encourage more short attacking kick options near the line, and a Super Time tie-breaker in the event of a draw.
"We will also zero in on the application of law around the breakdown and scrums, trying to limit some of the down time and improve the flow of the game.
"Throughout the process we stuck to the principle that whatever we changed, the game still had to be Rugby, and nothing could compromise the Wallabies' preparation for Test Rugby. In fact, I believe the changes we have implemented will broaden and enhance the capabilities of our players."
Earlier this week, The Australian reported Former Wallaby and Australian World Rugby executive committee representative Brett Robinson that the global body wouldn't realise some of the rules were lifted from league.
"They have been pretty accepting of them being good ideas," said Brett Robinson, the former Wallabies backrower who is now Australia's representative on the World Rugby executive committee. "They don't actually see a lot of rugby league, unfortunately, so they think those ideas are ours. Rugby is a massive global game. But it is just dwarfed by AFL and rugby league within Australia."
The new rules have been fairly well received although The Australian rugby league journalist Brent Read couldn't help but notice the rules sounded familiar.
Wallabies prop Scott Sio said the forwards may need to improve their fitness to adjust to the added speed of the game.
"You've always got to spice it up when you're trying something new, add a bit of variety," Sio said. "And it gives the viewership something new to watch; hopefully some more exciting footy in the attacking halves, players trying something new."