Originally Posted by
tentseller
At the present time, a RAT test 24hrs before departure to HK is still on the books. It can be self administered and one keep record of the -'ve result. There are many reports that this is not checked by CX at check-in nor by HK authorities upon arrival. YMMV
This is correct, on my last entry neither checked, but better safe than sorry as a poster above stated it is still on the books and it is entirely possible they start to enforce it without notice. The website says record of the result should be kept 3 months,