812191 — Diet and Weight Reducing Centers
Description
This U.S. industry comprises establishments primarily engaged in providing non-medical services to assist clients in attaining or maintaining a desired weight. The sale of weight reduction products, such as food supplements, may be an integral component of the program. These services typically include individual or group counseling, menu and exercise planning, and weight and body measurement monitoring (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Exclusions & Cross-References
- Operating physical fitness facilities--are classified in Industry 713940, Fitness and Recreational Sports
- Centers;
- Providing personal fitness training services without operating a fitness facility--are classified in Industry
- 812990, All Other Personal Services;
- Operating health resorts and spas that provide lodging--are classified in Industry 721110, Hotels (except
- Casino Hotels) and Motels; and
- Providing medical or surgical weight reduction--are classified in Sector 62, Health Care and Social
- Assistance.
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 7299 - Miscellaneous Personal Services, NEC (via SIC1987:7299→NAICS1997:812191→2002:812191→2007:812191→2012:812191→2017:812191→2022:812191)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC R401 — Personal Care Services (includes such services as barber and beauty shop, shoe repairs, tailoring, etc.)
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 812191 valid in 2022? ▾
Yes, 812191 is a valid 6-digit 2022 NAICS national industry code representing 'Diet and Weight Reducing Centers' under Sector 81 in the official classification index.
What is the SBA size standard for NAICS code 812191? ▾
The Small Business Administration (SBA) has established a small business size standard of $27,500,000 for NAICS code 812191 (Diet and Weight Reducing Centers), calculated based on receipts.
What is the legacy SIC equivalent for NAICS 812191? ▾
According to official Census Bureau concordance tables, NAICS code 812191 (Diet and Weight Reducing Centers) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 7299 - Miscellaneous Personal Services, NEC.
Related Pages & Tools
Further regulatory reference links for NAICS code 812191:
- Sector 81 Directory Hub — List of related industries in the Other Services (except Public Administration) sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 812191 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Diet and Weight Reducing Centers).
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.