Making face coverings compulsory on public transport is a 'no brainer', according to the National Bus and Rail Union.
Masks are to become mandatory on buses and trains in the UK from mid-June.
The number of people on public transport here is expected to increase significantly from Monday, if the country enters phase two as planned.
General Secretary of the NBRU Dermot O’Leary wants NPHET to recommend masks be compulsory on transport going forward.
