There is no universal certification process for NGOs, as there are many different types of NGOs and each may have different standards or requirements for certification. However, some NGOs may choose to seek accreditation or certification from certain organizations or bodies to demonstrate their commitment to best practices and accountability.

For example, the International Standards Organization (ISO) offers a certification process for NGOs that want to demonstrate their compliance with the ISO 9001 quality management standard or the ISO 14001 environmental management standard. In addition, some NGOs may choose to seek certification from organizations such as the Better Business Bureau Wise Giving Alliance or the Charities Aid Foundation to demonstrate their transparency and financial accountability.