A privileged special partnership would be a substitute for a full membership.
According to the proposal, financial support, special arrangements for access to European markets and other benefits would be offered to the Western Balkan countries in exchange for a "silent withdrawal" of full membership.
The European Union commissioner for enlargement, Johannes Hahn, on Thursday lamented last week's decision not to open accession talks with North Macedonia and Albania as "a matter of deep disappointment."
In opening remarks at the European Parliament plenary debate on opening the accession talks, Hahn said that EU leaders have "failed to live up to their commitment."
The US Senate has voted overwhelmingly to ratify North Macedonia's entry into NATO as the alliance's 30th member.
Senators voted 91-2 on Tuesday to approve North Macedonia's accession to the North Atlantic Treaty Organization. The no votes came from Republican Sens. Rand Paul of Kentucky and Mike Lee of Utah.
"Observers in the region see France and The Netherlands' policy as not being fair and motivated by domestic politics and stereotypes," Bieber said. "This undermines the EU as being a fair player and having clear criteria, especially since the commission has given the green light for negotiation."