How do I register NAICS 237110 on SAM.gov?

To register NAICS 237110 (Water and Sewer Line and Related Structures Construction) on SAM.gov, log in to your entity registration at SAM.gov, navigate to the NAICS codes section of your registration, and add 237110 to your list of applicable codes. You can add multiple NAICS codes that reflect your business capabilities. After updating, your registration must be renewed annually to remain active.

What set-asides are available for Water and Sewer Line and Related Structures Construction?

Common set-aside programs for NAICS 237110 contracts include: Small Business, 8(a), HUBZone, SDVOSB. The availability of specific set-asides depends on the individual solicitation and the contracting officer's market research findings. Small business set-asides require certification through SAM.gov, while 8(a), HUBZone, WOSB, and SDVOSB programs require additional SBA certifications.

How many Water and Sewer Line and Related Structures Construction contracts are posted per month?

NAICS 237110 (Water and Sewer Line and Related Structures Construction) contracts are posted regularly on SAM.gov, with volume varying by fiscal quarter. Federal procurement peaks in Q4 (July–September) as agencies exhaust year-end budgets. Typical contract sizes in this code range $250K - $20M. The top federal buyers include Army Corps of Engineers, Environmental Protection Agency, Bureau of Indian Affairs.

What size standard applies to NAICS 237110?

The SBA size standard for NAICS 237110 (Water and Sewer Line and Related Structures Construction) is set by the SBA and determines whether a firm qualifies as a small business for set-aside competition. Size standards are expressed as either annual average receipts or number of employees depending on the industry. Check the current SBA size standards table at sba.gov/size-standards or SAM.gov for the specific threshold applicable to your bid.

NAICS 23711023 - Construction

237110 — Water and Sewer Line and Related Structures Construction

Last updated: April 2026

Researched by the BidStride Research Team

Contractors in this code build water mains, sewer lines, and related water/wastewater infrastructure. Federal construction contracts for water infrastructure on military bases, Indian reservations, and other federal lands provide consistent opportunities, particularly for smaller regional contractors.

Federal contracts under NAICS 237110 appear across multiple procurement vehicles including SAM.gov open market solicitations, GSA Schedule task orders, and agency-specific IDIQ contracts. Contractors registered in this NAICS code should maintain an active SAM.gov registration and ensure their capabilities statement reflects specific experience within this industry classification.

Typical contract types in this NAICS include Firm Fixed Price (FFP) for well-defined deliverables, Time and Materials (T&M) for services with variable scope, and Cost-Plus for research and development programs. The typical contract range of $250K - $20M reflects the majority of awards, though individual contracts may fall outside this range depending on scope and agency requirements.

Top Federal Agencies

Army Corps of Engineers
Environmental Protection Agency
Bureau of Indian Affairs
Department of Defense

Typical Contract Details

Contract Range: $250K - $20M
Common Set-Asides: Small Business8(a)HUBZoneSDVOSB
Contract Types: FFP, T&M, Cost-Plus (program dependent)

Common Compliance Requirements

Contracts under NAICS 237110 frequently reference these FAR and DFARS clauses. Review them before submitting a proposal.

Always verify applicable clauses in the actual solicitation. Clause applicability depends on contract type, value, and agency requirements.

Frequently Asked Questions

How do I register NAICS 237110 on SAM.gov?
To register NAICS 237110 (Water and Sewer Line and Related Structures Construction) on SAM.gov, log in to your entity registration at SAM.gov, navigate to the NAICS codes section of your registration, and add 237110 to your list of applicable codes. You can add multiple NAICS codes that reflect your business capabilities. After updating, your registration must be renewed annually to remain active.
What set-asides are available for Water and Sewer Line and Related Structures Construction?
Common set-aside programs for NAICS 237110 contracts include: Small Business, 8(a), HUBZone, SDVOSB. The availability of specific set-asides depends on the individual solicitation and the contracting officer's market research findings. Small business set-asides require certification through SAM.gov, while 8(a), HUBZone, WOSB, and SDVOSB programs require additional SBA certifications.
How many Water and Sewer Line and Related Structures Construction contracts are posted per month?
NAICS 237110 (Water and Sewer Line and Related Structures Construction) contracts are posted regularly on SAM.gov, with volume varying by fiscal quarter. Federal procurement peaks in Q4 (July–September) as agencies exhaust year-end budgets. Typical contract sizes in this code range $250K - $20M. The top federal buyers include Army Corps of Engineers, Environmental Protection Agency, Bureau of Indian Affairs.
What size standard applies to NAICS 237110?
The SBA size standard for NAICS 237110 (Water and Sewer Line and Related Structures Construction) is set by the SBA and determines whether a firm qualifies as a small business for set-aside competition. Size standards are expressed as either annual average receipts or number of employees depending on the industry. Check the current SBA size standards table at sba.gov/size-standards or SAM.gov for the specific threshold applicable to your bid.

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