The WA Government's online registration system for critical workers is now available. Registration is mandatory for businesses that employ critical workers and want them to be exempt from isolation if they become asymptomatic close contacts.

Premier Mark McGowan announced on Monday 7 February that WA's new high caseload settings will come into effect from Tuesday 8 February.

The settings include a new close contact definition, new testing and isolation protocols and mandatory reporting of positive rapid antigen test (RAT) results.