Bid to cut carbon monoxide deaths
All new homes will have to be fitted with carbon monoxide alarms under reforms expected to be announced at the Assembly.
Finance Minister Sammy Wilson is poised to announce the change in building regulations.
The move, which it is understood will be confirmed on Wednesday, follows a number of tragic deaths blamed on carbon monoxide levels.
Chair of the Assembly Finance Committee Daithi McKay said he would welcome an announcement to tackle the problem.
"The committee first raised this issue with the Minister of Finance last year," he said.
"It did so in the immediate aftermath of tragic deaths of two young people in Castlerock last summer and since then other tragedies have taken place in relation to carbon monoxide poisoning."
The Sinn Fein MLA added: "Any move by the Assembly and the minister to make the fitting of carbon monoxide alarms compulsory would be most welcome."
Teenagers Neil McFerran and Aaron Davidson died in Castlerock, Co Londonderry, after gas leaked into a holiday flat last summer.
Killian and Pauline Scallon died last November when they were discovered at their home in Irvinestown in Co Fermanagh where they had been overcome by fumes.
Two weeks later a man was found dead in a restaurant in the town amid fears he was also overcome by fumes.