The Welfare Reform (Further Provision) (Scotland) Bill was introduced on 22 March 2012 [Session 4]
This was a Government Bill. Government Bills before September 2012 were known as Executive Bills.
The Bill was passed on 28 June 2012 and became an Act on 7 August 2012
If the Bill is passed by MSPs, it can then get Royal Assent and become an Act.