(a) The studies by GSA which lead to the development of space requirements and the determinations made as the result thereof will constitute the feasibility studies and the Administrator's determination contemplated by §101-5.104.

(b) Each determination to provide health services will be governed by the principles stated in §101-5.303 and will be in consonance with the general standards and guidelines furnished Federal agencies by the Public Health Service of the Department of Health, Education, and Welfare.