How does CBP ensure compliance of the entry summary?

The correct answer is that Customs and Border Protection (CBP) ensures compliance of the entry summary by fixing final appraisals and classifications. This process is essential because accurate appraisals and classifications of goods are crucial for determining the appropriate duties and tariffs that need to be paid when goods enter the United States. When CBP fixes these appraisals and classifications, they help ensure that trade regulations are followed, which contributes to the overall integrity and fairness of trade practices. This step also helps prevent inaccurate reporting and potential fraud, thereby enhancing compliance with the laws and regulations governing international trade.

The other options may contribute to compliance efforts in different contexts but do not directly address the specific method by which CBP ensures accuracy in the entry summary process. For instance, random audits might help to identify potential issues, but they are not the fundamental way compliance is ensured. Reviewing trade market trends could provide insights into broader market behaviors but does not pertain specifically to the entry summary. Classifying goods per government regulations is part of the process, but it is not the mechanism of final appraisal—thus not the primary means by which compliance is ensured.