The meeting will also decide on which deputy groups are entitled to have chair and co-chairs of the new Privileges and Credentials Commission.

The commission, which will be appointed on Friday, is in charge preparing the vote on the approval of new MPs' terms.

Only once at least half of deputy terms are endorsed (46 in the 90-strong parliament), the new parliament is formally inaugurated.

While the approval of terms is usually a technicality, this time the term of SDS leader Janez Janša seems uncertain.

Janša is serving a two-year prison sentence for corruption, but experts are divided on whether he can become an MP.

Under Slovenian law, a term of an MP terminates once their six-month prison sentence or more becomes final, meaning they have to go to prison.

A new parliamentary speaker will also be elected on Friday.

Today, however, interim deputy group leaders will also decide on the seating plan for the new four-year term.

If there are several deputy groups with the same number of MPs, a draw determines where they will sit.

The Social Democrats (SD) and the United Left (ZL) have each won six seats in the 13 July early general election.