Tens of thousands of civil service workers in the PCS union are gearing up to join the day of action on 24 April.
Workers in a number of civil service departments, including the Department for Work and Pensions (DWP), the Department for Transport, Land Registry, the home office and others are in dispute over pay.
The PCS national executive recently urged these groups of workers to strike on 24 April with other unions.
PCS members in the Maritime and Coastguard Agency have already said that they will strike on 24 April, as well as on Friday of this week.
PCS union leaders in the Department for Transport have voted that their group will also strike on the day unless they win serious concessions.
'Activists in the PCS have been pushing for a long time to strike with other unions,' Paul Williams, the PCS group president in the department, told Socialist Worker. 'People really want to link up with other groups of workers to increase the strength of our action.'
The PCS group executive in the DWP was set to meet this week to discuss taking the next step of their action in a long-running dispute over the imposition of a below-inflation pay offer. Activists will be pushing for the PCS's over 80,000 members in the DWP should strike on 24 April.
Action is taking place across the civil service against Gordon Brown's public sector pay limit.
PCS members in the NHS Pensions Division in Fleetwood struck on Wednesday of last week. Workers at the National Museum Wales struck on Thursday of last week.
Around 5,500 PCS members at the Land Registry walked out for an hour over pay on Wednesday of last week.
'The action had very good support,' said Dave Franklin, vice chair of the Land Registry computer services branch. 'We now hope that we will be taking some form of action on 24 April.'