The Skilled Regional Provisional subclass 489 visa is for Skilled workers, who are nominated by a state or territory to live in a regional or low population growth area or sponsored by an eligible relative living in Australia.
To start your immigration process to Australia for a skilled worker you need to first decide which visa you need to apply based on your qualification and experience. There are three major category for Australia Skilled Immigration as Skilled Independent Visa 189, Skilled Nominated Visa 190, Skilled Regional Visa 489