If the legislation is passed the grave will be exhumed later this year.
The remains of children buried in a mass unmarked grave in Tuam Co. Galway, are due to be exhumed later this year under newly- published legislation.
"The children found were aged between 35 weeks and three years," said Breeda Murphy.
796 children died from various causes in the Tuam mother and baby home over a 36-year-period but most of them have no known graves.
In 2017, children's remains were found in a mass grave in an underground tank.
If passed, the bill will allow remains to be exhumed and, where possible, identified and returned to relatives.
The draft legislation was published on Tuesday by the Minister for Children Roderic O'Gorman who said families have been waiting too long for their loved one's remains to be recovered from the site.
"What happened at Tuam is a stain on our national conscience," he said.
PRO Tuam Mother and Baby Home Alliance, Breeda Murphy: "The Minister gave a webinar to us yesterday.
"He said that the bill is as of yet unpublished.
"The devil is in the detail," she said.
Breeda spoke about the issue with Clem Ryan on Wednesday morning's Kildare Today:
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