Can I pay with a PO? March 03, 2023 19:18 Updated Yes, during checkout you can select the PO payment option and upload a copy of the document. Related articles What is the most efficient way to pay for my membership? What are the NIGP-CPP Eligibility Requirements? What is the difference between a certificate and a certification? What is the application process and related fees cost to earn the NIGP-CPP? Do core certificates disappear when I earn a designation?