The circumstances surrounding the deaths of 16 horses in January remains under investigation.
A Primary Industries, Parks, Water and Environment spokeswoman said the department was considering “all aspects” of the deaths.
“The department continues to seek information about the deaths to ensure a comprehensive understanding of all the circumstances before reaching any conclusions,” the spokeswoman said.
“As is standard practice, once the investigation is finalised an assessment will be made to determine if any offences have been committed and the action that will be taken.
“An assessment will also be made as to whether any additional measures are required.”
The horses travelled on the Spirit of Tasmania on January 28, after competing at the Barnougle Polo event the week before.
The department had previously advised that the matter was being treated as an isolated incident, with the investigation revealing no ongoing issues in relation to transport across Bass Strait.
The Spirit of Tasmania was found to have complied with the requirements relating to the carriage of livestock.