Japan Post declared their restrictions to the USA on August 25th here:
www.post.japanpost.jp
Declare it as a Gift less than $100, and you can still send it.
Not a gift or more than 100 smackers is now done via a more expensive shipping partner.
But who has recently shipped anything to the USA as a Gift valued less than $100, and was there any tariff applied, and if so, who paid and where? These are the questions I have, only because I have two kids in college in CA, but I and my wife live in Japan. Sometimes, we may need to ship them their personal effects, which technically isn't even a Gift because it's already their stuff.