Not quite 'all' Mr I.,
From the WA Gov site......
'The N.T. will transition from 'high risk' to 'extreme risk' under W.A.'s controlled border from 12.01am Thurs 13th Jan 2022'
The NT has been open until this but with restrictions, e.g. 'Approved Traveller' with a G2G Pass.
Under 'Extreme Risk' the list of 'approved travellers' is significantly reduced.......is what the site says.
'Google' WA Lockdown news.......for more detail.
See yas all.......sometime.......