"以确认为准" can be translated into English as "subject to confirmation" or "pending confirmation", depending on the context.
"Subject to confirmation" is often used in formal or business contexts to indicate that something is not final until confirmed. For example: "The final price is subject to confirmation." （最终价格以确认为准。）
"Pending confirmation" is also a suitable choice, implying that something is waiting for confirmation. For example: "The details are pending confirmation." （细节以确认为准。）