Watered down health and safety proposals will cost lives, family members of those killed in the Pike River disaster say.
"I never, ever want another mother to go through what I have had to go through over the last five years. I wouldn't wish it on anybody. It is like a life sentence," said Sonya Rockhouse, who lost her son Ben, 21, in the mine.
"We are not going away. We will keep doing this sort of thing until somebody listens. I am still a reasonably young woman, I am willing to keep doing it until the day I die, until something changes."
Mrs Rockhouse and Anna Osborne, who lost her husband Milton in the 2010 disaster, were amongst those who tonight held a vigil outside Parliament, along with 291 crosses to mark workplace deaths since Pike River.
Also present was Deborah McMillan, whose husband Shane Frater was killed in a forestry accident in Napier in 2009 when a branch hit him.