As of January 5, 2022, SBA will no longer use Product Service Codes (PSCs) to classify products covered by class waivers for the nonmanufacturer rule. SBA’s rationale for discontinuing PSC’s to classify class waivers is to “improve consistency in the application of class waiver.” SBA will use North American Industry Classification System codes (NAICS) as its sole classification system to identify products covered by class waivers going forward. Notification of the change of SBA’s rule was published in the Federal Register on December 6, 2021.