The authorities want to make it easier for teams carrying out a door to door mass vaccination campaign on Thursday and Friday to identify households who need vaccinated.
The country's expected to shut down for those two days while the campaign is carried out.
The latest measures come as the number of measles-related deaths continue to rise.
Yesterday the Samoan government said 55 people had died from measles, by far the majority of them children under four.
Another update is expected from them early this afternoon.