BRUSSELS—Post-Brexit fallout in Brussels could see more scalps claimed in the European Parliament on Tuesday, with implications for UK and European tech, science, and digital policy.

Leaders of the different political groups have already agreed that they will approve a call for the UK to begin Brexit negotiations “immediately." They will also hear from European Commission president Jean-Claude Juncker on “what happens next."

One of the biggest questions is what will happen next for the UK’s 73 MEPs. On Friday, Conservative MEP for Scotland, Ian Duncan, tendered his resignation as rapporteur in charge of steering post-2020 EU Emissions Trading System reforms through the European Parliament.

The next elections are not until 2019, so in theory MEPs could hang on to their posts. Ars has learned, however, that moves are already afoot to remove Internal Market and Consumer Protection (IMCO) committee chair, Vicky Ford, from her position. The Conservative MEP heads the committee that oversees legislation on geoblocking, the Digital Single Market, public sector bodies’ websites, and the cybersecurity directive.

Other British MEPs wielding serious influence over tech legislation are Claude Moraes and Mary Honeyball. Moraes is chair of the Civil Liberties, Justice, and Home Affairs committee (LIBE) which takes the lead on data protection, surveillance, and counter-terrorism issues, while Honeyball sits on the legal affairs (JURI) committee and has been vocal on copyright issues.

Of the UK MEPs, four are from Wales, six from Scotland, and three from Northern Ireland.

Later today in Brussels David Cameron will be expected to explain himself and the referendum vote to the other 27 national leaders. On Wednesday, the door will be closed to him as the others talk among themselves about what to do next.

The European Commission believes it should take the lead on exit negotiations, but member states may well have other ideas.