CFR›Title 13›Chapter I›Part 121›Subpart A›Subject Group Provisions of General Applicability ContainsSections 121.101–121.110CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Sections 121.101 § 121.101 What are SBA size standards? 121.102 § 121.102 How does SBA establish size standards? 121.103 § 121.103 How does SBA determine affiliation? 121.104 § 121.104 How does SBA calculate annual receipts? 121.105 § 121.105 How does SBA define “business concern or concern”? 121.106 § 121.106 How does SBA calculate number of employees? 121.107 § 121.107 How does SBA determine a concern's “primary industry”? 121.108 § 121.108 What are the penalties for misrepresentation of size status? 121.109 § 121.109 What is a small business status advisory opinion? 121.110 § 121.110 What must a concern do in order to be identified as a small business concern in any Federal procurement databases? Previous Procedures for Size Protests and Requests for Formal Size Determinations Procedures for Size Protests and Requests for Formal Size Determinations Next Size and Eligibility Requirements for the Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Programs Size and Eligibility Requirements for the Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Programs