Originally Posted by
SFO_UGS
No, I am not saying you "need" a printed document. I stated what I did. Since finding anything on my phone is a challenge, hard-copies are easier (for me) to present. No, I did not leave the printed document with anyone during the arrival process. I took it with me.
The Hawaii Safe Travels site allows uploading of documents to your account, which one should have already established and populated with the arrival flight info. It looks pretty easy to upload a document (assuming test results come in a compatible format). Once that is done, the arrival processor will have all the info he/she needs by scanning the QR code (aside from ID check). The Safe Travel site also documents your contact information, place of accommodation, and departure date.