562991 — Septic Tank and Related Services
Description
This U.S. industry comprises establishments primarily engaged in (1) pumping (i.e., cleaning) septic tanks and cesspools and/or (2) renting and/or servicing portable toilets (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Exclusions & Cross-References
- Installing septic tanks--are classified in Industry 238910, Site Preparation Contractors; and
- Cleaning and rodding sewers and catch basins--are classified in U.S. Industry 562998, All Other
- Miscellaneous Waste Management Services.
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 7359 - Equipment Rental and Leasing, NEC (via SIC1987:7359→NAICS1997:562991→2002:562991→2007:562991→2012:562991→2017:562991→2022:562991)
- SIC 7699 - Repair Shops and Related Services, NEC (via SIC1987:7699→NAICS1997:562991→2002:562991→2007:562991→2012:562991→2017:562991→2022:562991)
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 S222 — Waste Treatment and Storage
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 562991 valid in 2022? ▾
Yes, 562991 is a valid 6-digit 2022 NAICS national industry code representing 'Septic Tank and Related Services' under Sector 56 in the official classification index.
What is the SBA size standard for NAICS code 562991? ▾
The Small Business Administration (SBA) has established a small business size standard of $9,000,000 for NAICS code 562991 (Septic Tank and Related Services), calculated based on receipts.
What is the legacy SIC equivalent for NAICS 562991? ▾
According to official Census Bureau concordance tables, NAICS code 562991 (Septic Tank and Related Services) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 7359 - Equipment Rental and Leasing, NEC, 7699 - Repair Shops and Related Services, NEC.
Related Pages & Tools
Further regulatory reference links for NAICS code 562991:
- Sector 56 Directory Hub — List of related industries in the Administrative and Support and Waste Management and Remediation Services sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 562991 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Septic Tank and Related Services).
- 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.