In response to the Covid-19 pandemic a number of sets of guidance and recommendations have been issued to assist in maintaining the global supply chain and ensuring the welfare of seafarers. The documents can be accessed via a dedicated area of the IMO website: http://www.imo.org/en/MediaCentre/HotTopics/Pages/Coronavirus.aspx
For ease of reference we attach some key documents below.
Preliminary recommendations for governments and national authorities on the facilitation of maritime trade during the Covid-19 pandemic: https://docs.imo.org/Shared/Download.aspx?did=122607
Framework of protocols for ensuring safe ship crew changes and travel: http://www.imo.org/en/MediaCentre/HotTopics/Documents/COVID%20CL%204204%20adds/Circular%20Letter%20No.4204-Add.14%20-%20Coronavirus%20(Covid-19)%20-%20Recommended%20Framework%20Of%20Protocols.pdf
Guidelines for ensuring a safe ship-shore interface between ship and shore-based personnel: https://www.dropbox.com/s/8u1h3ajpi1o0hup/Covid-19%20Ship-Shore%20Interface.pdf?dl=0
Operational considerations for managing Covid-19 outbreaks on board ships: http://www.imo.org/en/MediaCentre/HotTopics/Documents/Circular%20Letter%20No.4204-Add.3.pdf