Formal size determinations and NAICS code designations made by authorized SBA officials are binding upon the parties. Opinions otherwise provided by SBA officials to contracting officers or others are advisory in nature, and are not binding or appealable.
Source: Code of Federal Regulations, Title 13, Volume 1, Revised as of January 1, 2003, Part 121 - Small Business Size Regulations, Subpart A - Size Eligibility Provisions and Standards, Size Eligibility Requirements for Government Procurement
