This House of Commons Library Research Briefing considers the debate about who is responsible for paying for fire safety works on blocks of flats in the wake of the Grenfell Tower fire. It covers progress in implementing the Government decision to fund remediation work for affected blocks with ACM cladding in the social and private sectors. In March 2020, a £1 billion Building Safety Fund was announced to fund the removal of unsafe non-ACM cladding on high-rise blocks in the social and private sectors. Ongoing issues include the adequacy of the funding available and how historic defects, such as a lack of fire stopping measures, will be paid for.