There are regulation for discharge of ballast water.
Only clean Black Sea water to be used as a ship's ballast for discharge. Ballast quantity should be stated in the log book.
Deballasting within port limits and 12 miles sanitary zone is strictly forbidden until special authorisation is received from the State Inspection for Protection of the Black Sea after prior testing of ship's ballast water samples by shore laboratory.
Unauthorised deballasting is fined up to USD 5,000 plus costs for actual damage to the environment if any.
Above regulations are applicable in all of the Black Sea ports of Ukraine.