Listeners instead will have to tune into Digital Audio Broadcast (DAB) radio to catch their favourite stations in future.
Mr Vaizey re-opened the controversy around the switchover by suggesting that the Government was close to its target of getting listeners to switch to digital radio.
He declined to commit to a deadline, but told BBC Radio 4’s Today programme: ‘When we reach a certain target of listening on digital, and we are very close to that target at the moment, we will take a view on what the appropriate next steps should be.
‘We now have digital coverage of all BBC radio stations that is as good as FM. We will shortly reach that target in commercial [radio].'
He insisted, however, that the Government would be ‘led by the listener’.
He added: ‘We don’t want to do anything that would impinge in any way on listening to a programme like this.’
‘What we have done is we have continued to press ahead with our roll out of digital radio infrastructure.’
‘Most cars now have digital radio fitted as standard. It is becoming much cheaper now to buy a digital radio, they are much more energy efficient.’
Any moves to entirely switch off the FM signal will be met with public fury. Ministers were forced to back down on switching it off in 2013 following a public backlash.
DAB signals are still patchy in parts of the country and are hit by a time delay.
Many cars still have only analogue radio, with converter kits costing about £100. Many homes have multiple radios and converting them all to digital could cost hundreds of pounds.
Targets decree that 50 per cent of all radio listening should be digital and DAB coverage should be extended to 90 per cent of the population and all major roads, before a switch off is considered.
Even then, ministers have to give two years’ notice before turning off FM.