Can I bid on contracts using different NAICS codes?

NAICS codes and bidding: **How It Works:** - Solicitation specifies the NAICS code - Your size is measured against that code's standard - You can be "small" for some codes, not others **Multiple NAICS Registration:** - Register multiple codes in SAM.gov - List codes you can legitimately perform - Don't register codes you can't perform **Size Determination Per Contract:** - Size evaluated at time of offer - Based on solicitation's assigned NAICS - May be small for one contract, large for another **Best Practices:** - Focus on 3-5 core NAICS codes - Choose primary NAICS carefully - Keep SAM.gov profile accurate - Track size against key codes