The Tarrawingee farmers lost their young granddaughters and son-in-law in an horrific fuel tanker crash on the NSW south coast near Ulladulla in 2009.

Their daughter Debbie survived the crash with burns to 80 per cent of her body, but died two years later after speaking at a coronial inquest into the crash in 2011.

The Murrays have since taken up the fight — in the name of their loved ones — to fit all trucks with electronic stability control, technology that alerts drivers when their trailer is starting to tip.

This month, the NSW government has moved to make electronic stability control mandatory on all dangerous goods tankers that come through the state.

But the Murrays believe safety should come first and regardless of their cargo, any truck has the potential to lose control and roll, causing fatalities.

On Thursday, member for Indi Cathy McGowan urged the Federal Parliament to introduce national regulations.

But action is slow. The Murrays want to see a quicker response to the call for mandatory electronic stability control so another family doesn’t suffer the same dreadful losses they have had.