Which document serves as evidence of payment for the renewal fee?

The correct answer is the document commonly referred to as BCOR (Bureau of Customs Official Receipt). This document is specifically designed to serve as proof of payment for various transactions with the Bureau of Customs, including the renewal fee for a customs broker's accreditation. The BCOR contains vital details such as the amount paid, the date of payment, and information about the transaction, making it an official and verifiable record of payment.

The other choices do have their own purposes in the customs process but do not serve as direct evidence of payment. A Certificate of Compliance is typically used to show that a broker meets regulatory requirements but does not document payment. An Official Receipt does indicate that a payment has been made, but the specific term used in customs contexts to confirm fees like the renewal fee is the BCOR. The Application Form is necessary to initiate the renewal process, but it does not provide evidence that the renewal fee has been paid.