Europe residents possessing a COVID-19 certificate should be enough to allow free movement through the European Union this summer, say European Union lawmakers, though the position is likely to clash with individual member states’ prerogatives in their upcoming negotiations.

The EU legislators said on Thursday that European national governments shouldn’t impose quarantines, tests, or self-isolation measures on certificate holders, which would be available to people who can prove they have been vaccinated, and also to those who tested negative for the virus or have proof they recovered from it.

The European Commission’s goal is to boost travel from one member state to another during the pandemic. But since border control is a competence of member states, each of the 27 EU countries will remain entitled to add extra requirements for granting access to its soil.

“What’s the point in having a common European scheme if then member states can, whenever they feel like it, ignore the certificate and impose additional restrictions?” Dutch lawmaker Sophie in ’t Veld said during the debate. “Citizens want their rights, they want their freedom, they want to travel.”

Following Wednesday’s vote on the plan, negotiations between the European Parliament and the European Council can start, with the goal of having a deal approved in June, before the summer season.

In their resolution, EU lawmakers added that member states should “ensure universal, accessible, timely and free-of-charge testing” to avoid discrimination against those who have yet to be vaccinated and will travel on the basis on PCR tests. According to the European Commission’s predictions, about 70% of the EU adult population will be vaccinated by the end of the summer.

In March, the European Commission proposed that the certificates should be suspended once the World Health Organization declares the end of the COVID-19 pandemic. Legislators said they should be in place for a maximum of 12 months and will “neither serve as a travel document nor become a precondition to exercise the right to free movement.”

“Member states must coordinate their response in a safe manner and ensure the free movement of citizens within the EU,” said Juan Fernando López Aguilar, the chair of the European Parliament’s civil liberties committee. “Vaccines and tests must be accessible and free for all citizens.”

As for the list of vaccines that could be included in the program, lawmakers agreed with the European Commission’s proposal that all vaccines rubber-stamped by the European Medicines Agency, the EU’s drug regulator, should be automatically recognized. They also offered EU countries the possibility to include other vaccines listed by WHO for emergency use.