The Nonresponse Followup operation (NRFU) will determine the status of the nonresponding addresses to the 2020 Census. NRFU will ascertain whether nonresponding addresses have housing units and whether they are occupied or vacant. If a housing unit is occupied then NRFU will enumerate that housing unit. It is anticipated that 60 percent of all U.S. addresses will self-respond in 2020. The remaining 40 percent of addresses will make up the NRFU universe.

Timeframe: Most NRFU operations will start early May in 2020. Early NRFU begins April 9, 2020 and targets those colleges and universities where the spring semester ends prior to the start of NRFU.

Related resources

• Census NRFU main page