IIRC, they no longer print it, but you can probably buy used collections.
kagis
Yeah. The final print edition was 2010:
https://en.wikipedia.org/wiki/Encyclopædia_Britannica
The Encyclopædia Britannica (Latin for ‘British Encyclopaedia’) is a general-knowledge English-language encyclopaedia. It has been published by Encyclopædia Britannica, Inc. since 1768, although the company has changed ownership seven times. The 2010 version of the 15th edition, which spans 32 volumes[1] and 32,640 pages, was the last printed edition. Since 2016, it has been published exclusively as an online encyclopaedia at the website Britannica.com
Printed for 244 years, the Britannica was the longest-running in-print encyclopaedia in the English language. It was first published between 1768 and 1771 in Edinburgh, Scotland, in three volumes.
Copyright (well, under US law, and I assume elsewhere) also doesn’t restrict actually making copies, but distributing those copies. If you want to print out a hard copy of the entire Encyclopedia Britannica website for your own use in the event of Armageddon, I imagine that there’s probably software that will let you do that.
You typically need to notify other members of a treaty of your withdrawal, and then there’s some time delay until you’re no longer bound by the terms. You can’t just secretly withdraw, or treaties wouldn’t be very meaningful.
EDIT: Yeah. The submitted article says that it happens in six months from today, and here’s the treaty text on withdrawal:
https://www.un.org/en/genocideprevention/documents/atrocity-crimes/Doc.44_convention antipersonnel mines.pdf