Which NAICS code covers pest control work, and what size standard applies for a set aside?

The appropriate NAICS code for federal pest control services is usually 561710, Exterminating and Pest Control Services. The contracting officer assigns a single NAICS code that best describes the principal purpose of the product or service being acquired, as stated in FAR 19.102. This code then determines the applicable size standard for the solicitation. For example, NAICS 561710 has an employee-based size standard, while other codes like 561720 (Janitorial Services) typically have a receipts-based size standard. Your company's size, based on its average number of employees over the preceding 24 months, will determine if you qualify as a small business under the specific NAICS code assigned to the contract (13 CFR 121.106(b)). This qualification is crucial for bidding on small business set-aside opportunities. If a solicitation uses a different NAICS code that you believe is incorrect, you can raise this with the contracting officer during the Q&A period for clarification.