In a notice to supporters, the movement said only designated delegates registered under The Equitable Party (TEP) before publication of the conference notice would be admitted.
The announcement comes amid growing questions over the party's internal leadership arrangements and the process through which delegates were selected.
The movement said the conference is a statutory requirement in the process of establishing its political party. Each county has been allocated a specific number of representatives based on its registered membership, with the organisers insisting that the quotas must be respected.
"Attendance at the NDC on 13 November 2026 is restricted to designated delegates drawn from TEP members who were registered by the date the NDC notice was published," the movement said in its communication.
The notice also urged supporters to cooperate with the arrangements, explaining that the meeting would consider a proposed change of the party's name and ratify other decisions needed to complete its transition into the Linda Mwananchi Movement.
The restrictions mean that ordinary supporters who are not among the designated delegates will not be eligible to attend the gathering.
Legal challenge puts conference under scrutiny
The announcement came hours after Emmanuel Wellingtone Khamala filed a complaint before the Political Parties Disputes Tribunal seeking to stop the conference.
Khamala, who describes himself as a registered TEP member, wants the tribunal to suspend the meeting until it has heard and determined his complaint.
He alleges that members were excluded from key party decisions and that leadership structures were established without elections. He also disputes the legitimacy of the delegates expected to participate in Friday's conference, arguing that they did not emerge from properly elected party structures.
The complaint names TEP's National Executive Committee and National Elections Board, the Independent Electoral and Boundaries Commission (IEBC), the Office of the Registrar of Political Parties and the Political Parties Liaison Committee as respondents.
Nairobi Senator Edwin Sifuna, who is expected to lead the proposed movement, is listed as an interested party.
The allegations are yet to be determined by the tribunal. The filing of the complaint does not, by itself, establish that the party violated its constitution or electoral procedures.
