The UK PM is meeting European Council president Donald Tusk in London today
The BBC report that Cameron will argue for changes to a proposed "emergency brake" on in-work benefits for EU migrants.
EU officials have suggested Britain could use the brake for up to 4 years, but would have to prove public services were under excessive strain.It could be imposed within 3 months of the UK applying, if EU states agree.
But Cameron will tell Tusk that he wants the brake in force straight after the EU referendum, with no time limit.
The pair are meeting to finalise a package of measures to put to EU leaders ahead of a summit, to be held from 18 to 19 February.
The Beeb has more here.
Eamonn had this on the brake last week-end.
Yesterday I reported the latest EU referendum poll results with a few thoughts.
Cameron and Tusk meeting today in London
