Nonresponse Follow-up (NRFU): Frequently Asked Questions 2020 Census, Census 101 Nonresponse Follow-up (NRFU): Frequently Asked Questions Natalie2020-08-12T10:27:23-04:00Categories: 2020 Census, Census 101|Tags: Frequently Asked Questions, Non-Response Follow Up, NRFU, ny counts 2020| What is Census Non-response Follow-up (NRFU, or “ner-fu”)? Read More Comments Off on Nonresponse Follow-up (NRFU): Frequently Asked Questions