The United States Small Business Administration (SBA) is increasing the small business size standards for 37 industries and retaining the current size standards for the remaining seven industries in North American Industry Classification System (NAICS) Sector 56, Administrative and Support, Waste Management and Remediation Services. As part of its ongoing comprehensive review of all size standards, SBA has evaluated all receipts-based size standards for industries in NAICS Sector 56 to determine whether they should be retained or revised. SBA did not review the employee-based size standard for Environmental Remediation Services, an "exception" under NAICS 562910, Remediation Services, in NAICS Sector 56, but will do so at a later date with other employee-based size standards.