Businesses should tap on the alternate mode of SafeEntry in the unlikely event that their deployed mode breaks down, i.e. use SafeEntry with QR as back-up if SafeEntry with NRIC is the preferred mode, and vice versa. Businesses may do so by setting up the alternate mode at www.SafeEntry.gov.sg. We do not recommend hard copy form filling as a back-up. The common use of SafeEntry by all establishments would allow data to be automatically sent to MOH. Hard copy recording of particulars would present a gap in this automated process and affect the contact tracing process.