Which of the following is a main concern of the US government regarding export regulations?

The primary concern of the US government regarding export regulations is who is involved in the import/export transaction. This focus stems from several important factors, including national security, foreign relations, and compliance with international treaties. The government needs to ensure that certain parties, particularly those who may pose a risk or are involved in illegal activities, are not participating in trade that could compromise security or violate laws.

Ensuring the integrity of the parties involved in transactions helps prevent sensitive technology or goods from falling into the wrong hands, which is crucial for protecting national interests. Regulations often involve screening exporters and importers, assessing their backgrounds, and ensuring they have not been involved in any illegal activities or sanctions violations.

Other options, while potentially of interest, do not address the most pressing concerns the government has. The volume of products exported or the specific number of goods exported annually plays a role in trade policy and economic analysis but does not carry the same weight in terms of security and regulatory compliance. Similarly, the location of manufacturing within the US might be of interest for economic or policy reasons, but it does not directly relate to the primary focus of export regulations regarding who conducts the transactions.