Open Loop Scrubber Puzzle for Boxship Operators at Chinese Ports!

Vessels with open-loop scrubbers are expecting operational disruptions at chinese ports as there is no clear procedure insight.
Open-loop scrubber installed vessels are quired to switch to LSFO as they approach the coastal areas of China
But this automatic switch seems impractical and chinese port authorities will be preoccupied with coronavirus outbreak to look into the matter
While traveling outside the coastal areas in China, the shipowner must provide port state control letter as they are...