A Hillsborough Law will finally be introduced into Parliament.
The long-awaited bill is set to be brought before the House of Commons on Tuesday and create a duty of candour for public officials and authorities.
It comes after years of campaigning for legislation to avoid a repeat of the cover-ups over the tragedy which saw 97 Liverpool fans unlawfully killed.
Criminal sanctions including up to two years in prison will be among the statutes that public bodies and its employees will have to adhere to.
Bereaved families are also set to be offered non-means-tested help and support for inquests with the latest expansion of legal aid in decades.
Deputy prime minister David Lammy said: “I speak from personal experience when I say disasters like Hillsborough and Grenfell are tragedies our nation continues to mourn.
“The scars left behind sit at the heart of this bill – and I want to pay testament to those who have campaigned so long to effect real change.
“The changes we’re making will ensure truth and justice are never concealed again and brave families never again left fighting endlessly for the truth – and anyone caught trying to do so will face the full force of the law.”
Margaret Aspinall, who lost her 18-year-old son James at Hillsborough, has welcomed the move which was a key pledge in Labour’s election manifesto.
She said: “It’s been a long journey to get here. I am so grateful to the prime minister for fulfilling his promise to me.
“This campaign wasn’t about just us, it is about the ordinary people of this country.
“Hopefully this law will mean no-one will ever have to suffer like we did. This promise now was well worth waiting for, for the good of the people.
“We have got the Hillsborough Law.”