DUP leader Arlene Foster will be meeting the prime minister and the secretary of state in London for separate talks on Wednesday.
Mrs Foster is expected to discuss Brexit and the DUP’s Westminster deal with Theresa May, and plans to grant civil servants greater temporary powers with Karen Bradley.
It described it as a small step, but argued that there remains a need for ministerial decision making.
The Northern Ireland Assembly has not sat for 20 months.
Separately, pro-Brexit Conservaties are expected to publish a paper later on Wednesday focusing on the border and the backstop policy, which is central to the UK’s current negotiations with the EU.
Tory Brexiteers have been strongly critical of Theresa May’s decision to sign up to a backstop.
The launch of their paper is expected to be attended by former Brexit Secretary David Davis, former Northern Ireland Secretaries Owen Paterson and Theresa Villiers, former Northern Ireland First Minister Lord Trimble and Jacob Rees-Mogg, the chairman of the eurosceptic European Research Group.
Source BBC News