The Public Record Office of Northern Ireland (PRONI) has announced on Twitter that from Monday 20 June, researchers will be able to visit the repository without requiring an appointment.
An appointment-only system has been operational for some time due to the Covid-19 pandemic.
While normal operational service resumes, visitors will be encouraged to wear masks and maintain a 1-metre social distancing regime in line with the NI Executive guidance.
PRONI's website has yet to be updated with this news, but I would expect it to noted in the pages relating to 'opening hours' and 'preparing for a visit' shortly.