The United States and the United Kingdom are preparing to sign an agreement that will shorten approval times for nuclear power projects when President Donald Trump visits Britain this week, Bloomberg reported, citing the UK government.

Under the deal, regulators in both countries will recognise each other’s safety reviews of reactor designs, allowing licensing timelines to be reduced to about two years instead of the current three to four. The UK government described the arrangement as a step toward accelerating nuclear expansion.

Prime Minister Keir Starmer welcomed the agreement, calling it part of a "golden age of nuclear" that would place both nations at the forefront of energy innovation. US Energy Secretary Chris Wright added that meeting rising energy needs will require "strong partnerships with our allies" and closer cooperation with private sector developers.

The nuclear partnership is one of several economic announcements the UK government intends to unveil during Trump’s three-day visit. The president is scheduled to arrive in London on Tuesday, take part in ceremonial events with King Charles III on Wednesday, and meet Starmer for talks on Thursday.

Among the initiatives, X-Energy and Centrica plan to build a dozen advanced modular reactors in Hartlepool, while Holtec and EDF will develop data centres in Nottinghamshire powered by small modular reactors. Combined, the agreements are valued at more than 50 billion pounds (about 68 billion US dollars), according to government estimates.

The trip comes as Starmer faces political challenges at home. The resignation of Deputy Prime Minister Angela Rayner over a tax scandal and the dismissal of UK ambassador to Washington Peter Mandelson—following a Bloomberg investigation into his ties with Jeffrey Epstein—have fuelled questions within Labour ranks about Starmer’s leadership.

Officials are also bracing for a joint press appearance with Trump that may draw repeated questions on Epstein. Despite the tensions, the two leaders are expected to highlight new initiatives, including a partnership between British and American technology sectors backed by Nvidia’s Jensen Huang and OpenAI’s Sam Altman, a project linked to Mandelson before his departure.

Britain is also seeking concessions on US tariffs affecting steel and whisky exports. On Thursday, Trump and Starmer will host a reception with leading British and American investors at the prime minister’s Chequers residence, where guests will include senior executives from GSK, Microsoft and Rolls-Royce.