The RFU want to reduce the tournament by one calendar week
The Scottish Rugby Union are set to oppose any shortening of the Six Nations when discussions on how to improve the tournament happen in April.
However it looks as if Scotland will be amongst a group of nations opposed to the change. Speaking to the BBC, the CEO of the Scottish Rugby Union, Mark Dodson said: "My view is that seven to six weeks is a retrograde step and it's a dangerous step as far as player welfare is concerned.
"We're going to look after our boys. Anybody who has just witnessed the intense physicality in this last Six Nations and wants to reduce that down to six weeks is taking a huge gamble with player safety.
"There will be discussion over the next month and we're very clear of how we feel. I'd imagine other people will be equally clear and will share our views," he added.
This year, Scotland finished in fourth place in the tournament, despite three home wins over Ireland, Wales and Italy.