Ships with seafarers aboard who have spent too long at sea may be detained, the Australian Maritime Safety Authority (AMSA) has declared.
An explanation of how AMSA will respond to a variety of lengthy seafarer-service periods has been set out in Marine Notice 04/2020.
Service of less than 11 months
No action will be taken if a seafarer has served under 11 months, and has not taken leave, provided there is a valid Seafarer Employment Agreement that is being complied...
https://shippingaustralia.com.au/times-up-amsa-sets-out-maximum-seafarer-service-periods/