The introduction of safe standing at football grounds would guarantee fans a "better atmosphere and cheaper tickets", the Liberal Democrats have said.
Party spokesman John Leech MP told BBC Sport standing areas have proved successful at grounds across Europe and could have beneficial effects for supporters in Britain.
Safe standing is allowed in many other sports and we do not believe that the top level of football should be an exception.
Safe standing offers supporters more choice, a better atmosphere and cheaper tickets.
It is an idea whose time has come and I am proud that it is the Liberal Democrats who are the first political party to commit to delivering this.
More top news
The triggering of Article 50 has dominated newspaper headlines on Thursday, with many focusing on a possible threat over security by Ms May.
Twelve people have been killed and three injured after a pick-up truck and a church minibus crashed head-on in Texas.
Revenge porn offenders who attempt to magnify their targets' humiliation will face the toughest penalties under new sentencing proposals.