Assembly members supported a legislative consent motion to approve a bill to amend parts of the law that discriminated against those with mental health conditions participating in public life, on 11 December 2012.
Enterprise Minister Arlene Foster sought approval for the motion on a Mental Health (Discrimination) Bill.
She explained that company law was a transferred matter but was legislated for on a UK-wide basis.
The motion gave consent to the provisions contained within the bill to allow the Westminster Parliament to proceed.
Mrs Foster said the private members' bill, sponsored by Conservative MP Gavin Barwell, had been introduced to Westminster on 20 June 2012.
The aim of the bill is to reduce the stigma and negative perceptions associated with mental illness.
It seeks to remove legislative provisions that can prevent people with mental health conditions from serving as Members of Parliament, members of the devolved legislatures, jurors, or company directors.