This might require contacting the bank, and it also likely depends on the receiving account.
We do USD-USD transfers to Madagascar multiple times a month, but we had to set up a USD account at Bank of Africa. If I try transferring USD to a local standard account, it will default to local currency because the account is a local currency account.
We (my company) can only have one USD account, but multiple local accounts on the same company "user account". We also have a Euro account for transfers from Europe.