There were heated exchanges outside parliament as police turned back former prime minister Tuilaepa Sailele Malielegaoi and his Human Rights Protection Party colleagues.
The Speaker, Papali'i Li'o Masipa'u, banned HRPP members because he said they refuse to recognise him as Speaker.
Our correspondent Autagavaia Tipi Autagavaia said the Speaker has not yet committed to a swearing-in schedule for HRPP.
He thought the Speaker might act at the end of the budget session.
Tuilaepa, who has been highly critical of the courts, is facing contempt charges.