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Title 13

Displaying title 13, up to date as of 6/16/2026. Title 13 was last amended 6/11/2026.
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  1. Title 13 —Business Credit and Assistance
  2. Chapter I —Small Business Administration
  3. Part 121 —Small Business Size Regulations
  4. Subpart A   View Full Text
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Title 13Business Credit and AssistancePart / Section
Chapter ISmall Business Administration1 – 199
Part 121Small Business Size Regulations121.101 – 121.1206
Subpart ASize Eligibility Provisions and Standards121.101 – 121.1103
Provisions of General Applicability121.101 – 121.110
§ 121.101What are SBA size standards?
§ 121.102How does SBA establish size standards?
§ 121.103How does SBA determine affiliation?
§ 121.104How does SBA calculate annual receipts?
§ 121.105How does SBA define “business concern or concern”?
§ 121.106How does SBA calculate number of employees?
§ 121.107How does SBA determine a concern's “primary industry”?
§ 121.108What are the penalties for misrepresentation of size status?
§ 121.109What is a small business status advisory opinion?
§ 121.110What must a concern do in order to be identified as a small business concern in any Federal procurement databases?
Size Standards Used To Define Small Business Concerns121.201
§ 121.201What size standards has SBA identified by North American Industry Classification System codes?
Size Eligibility Requirements For SBA Financial Assistance121.301 – 121.305
§ 121.301What size standards and affiliation principles are applicable to financial assistance programs?
§ 121.302When does SBA determine the size status of an applicant?
§ 121.303What size procedures are used by SBA before it makes a formal size determination?
§ 121.304What are the size requirements for refinancing an existing SBA loan?
§ 121.305What size eligibility requirements exist for obtaining financial assistance relating to particular procurements?
Size Eligibility Requirements for Government Procurement121.401 – 121.412
§ 121.401What procurement programs are subject to size determinations?
§ 121.402What size standards are applicable to Federal Government Contracting programs?
§ 121.403Are SBA size determinations and NAICS code designations binding on parties?
§ 121.404When is the size status of a business concern determined?
§ 121.405May a business concern self-certify its small business size status?
§ 121.406How does a small business concern qualify to provide manufactured products or other supply items under a small business set-aside, service-disabled veteran-owned small business, HUBZone, WOSB or EDWOSB, or 8(a) contract?
§ 121.407What are the size procedures for multiple item procurements?
§ 121.408What are the size procedures for SBA's Certificate of Competency Program?
§ 121.409What size standard applies in an unrestricted procurement for Certificate of Competency purposes?
§ 121.410What are the size standards for SBA's Section 8(d) Subcontracting Program?
§ 121.411What are the size procedures for SBA's Section 8(d) Subcontracting Program?
§ 121.412What are the size procedures for partial small business set-asides?
Size Eligibility Requirements for Sales or Lease of Government Property121.501 – 121.512
§ 121.501What programs for sales or leases of Government property are subject to size determinations?
§ 121.502What size standards are applicable to programs for sales or leases of Government property?
§ 121.503Are SBA size determinations binding on parties?
§ 121.504When does SBA determine the size status of a business concern?
§ 121.505What is the effect of a self-certification?
§ 121.506What definitions are important for sales or leases of Government-owned timber?
§ 121.507What are the size standards and other requirements for the purchase of Government-owned timber (other than Special Salvage Timber)?
§ 121.508What are the size standards and other requirements for the purchase of Government-owned Special Salvage Timber?
§ 121.509What is the size standard for leasing of Government land for coal mining?
§ 121.510What is the size standard for leasing of Government land for uranium mining?
§ 121.511What is the size standard for buying Government-owned petroleum?
§ 121.512What is the size standard for stockpile purchases?
Size Eligibility Requirements for the 8(a) Business Development Program121.601 – 121.604
§ 121.601What is a small business for purposes of admission to SBA's 8(a) Business Development program?
§ 121.602At what point in time must a 8(a) BD applicant be small?
§ 121.603How does SBA determine whether a Participant is small for a particular 8(a) BD subcontract?
§ 121.604Are 8(a) BD Participants considered small for purposes of other SBA assistance?
Size and Eligibility Requirements for the Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Programs121.701 – 121.705
§ 121.701What SBIR and STTR programs are subject to size and eligibility determinations and what definitions are important?
§ 121.702What size and eligibility standards are applicable to the SBIR and STTR programs?
§ 121.703Are formal size determinations binding on parties?
§ 121.704When does SBA determine the size and eligibility status of a business concern?
§ 121.705Must a business concern self-certify its size and eligibility status?
Size Eligibility Requirements for Paying Reduced Patent Fees121.801 – 121.805
§ 121.801May patent fees be reduced if a concern is small?
§ 121.802What size standards are applicable to reduced patent fees programs?
§ 121.803Are formal size determinations binding on parties?
§ 121.804When does SBA determine the size status of a business concern?
§ 121.805May a business concern self-certify its size status?
Size Eligibility Requirements for Compliance With Programs of Other Agencies121.901 – 121.904
§ 121.901Can other Government agencies obtain SBA size determinations?
§ 121.902What size standards are applicable to programs of other agencies?
§ 121.903How may an agency use size standards for its programs that are different than those established by SBA?
§ 121.904When does SBA determine the size status of a business concern?
Procedures for Size Protests and Requests for Formal Size Determinations121.1001 – 121.1010
§ 121.1001Who may initiate a size protest or request a formal size determination?
§ 121.1002Who makes a formal size determination?
§ 121.1003Where should a size protest be filed?
§ 121.1004What time limits apply to size protests?
§ 121.1005How must a protest be filed with the contracting officer?
§ 121.1006When will a size protest be referred to an SBA Government Contracting Area Office?
§ 121.1007Must a protest of size status relate to a particular procurement and be specific?
§ 121.1008What occurs after SBA receives a size protest or request for a formal size determination?
§ 121.1009What are the procedures for making the size determination?
§ 121.1010How does a concern become recertified as a small business?
Appeals of Size Determinations and NAICS Code Designations121.1101 – 121.1103
§ 121.1101Are formal size determinations subject to appeal?
§ 121.1102Are NAICS code designations subject to appeal?
§ 121.1103What are the procedures for appealing a NAICS code or size standard designation?
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