The National Art Foundation is usually very strict in arranging judges' seats and follows certain principles and procedures. Due to different evaluation items, evaluation stages and other factors, the specific seating arrangement may be different. The following are the general principles for the seating arrangement of appraisers:

1. Objectivity and impartiality: The judges' seating arrangement should ensure the objectivity and impartiality of the evaluation process and avoid possible conflicts of interest or prejudice. To this end, appraisers are usually required to make a good faith commitment and sign a confidentiality agreement to ensure the fairness and confidentiality of the evaluation process.

2. Independence: The judges' seating arrangement should ensure that they are independent of each other, so as to avoid the judges being influenced or interfered by others. Reviewers are usually required to keep independent thinking and decision-making in the review process without interference from others.

3. Professionalism: The appraiser's seating arrangement should take into account his professional background and knowledge in the professional field to ensure the professionalism and accuracy of the appraisal process. Reviewers from different professional fields can be assigned to different review groups or meetings to review different projects or fields.

4. Equality and justice: The judges' seating arrangement should ensure the equality and justice of the evaluation process and avoid unfair evaluation results due to seat position or other factors. The judges' seats will usually be arranged by the organizer before the start of the evaluation, and random drawing or other fair ways can be adopted.

To sum up, the National Art Foundation of the United States is based on the principles of objectivity, impartiality, independence, professionalism, equality and fairness, and the specific seating arrangement may be different due to different evaluation projects.