A pdf of updates to the B21 schedules in the International section of
WRTH 2022 is now available free of charge. Visit Updates

http://www.wrth.com/_shop/?page_id=444
and click the "International Updates" link to download the file from the 
WRTH store.
If you haven't yet got your copy of WRTH 2022 you can buy one NOW using 
this link

https://wrth.com/_shop/?product=wrth-2022
Readers in North America can also order copies from Universal Radio
https://www.universal-radio.com/catalog/books/2022.html
I hope you find the update useful.
Best wishes,
Nicholas Hardyman
Publisher
Our mailing address is:
WRTH Publications Ltd
8 King Edward Street
Oxford, OXON OX1 4HL
United Kingdom
Our telephone:
+44 (0)1865 339355