Liverpool are to trial seats with safety rails at Anfield because of concerns over "persistent standing" by supporters.
The trial will begin at the start of next season.
"Anfield will remain an all-seater stadium and the trialled areas with the new seats and safety rails are not 'safe standing' areas," said the club.
About 7,800 seats will be updated, with 1,800 in the back of the Kop and 6,000 in the Anfield Road lower tier.
"The seating being installed at Anfield includes normal stadium seats with an integrated safety rail behind them to avoid a crowd collapse," added the club.