https://immunize.ca/covid-19-national-guidance-healthcare-providers

which leads to:

Recommendations on the use of bivalent Omicron- containing mRNA COVID-19 vaccines.      Published: September 1, 2022

https://www.canada.ca/content/dam/phac-aspc/documents/services/immunization/national-advisory-committee-on-immunization-naci/recommendations-use-bivalent-Omicron-containing-mrna-covid-19-vaccines.pdf

27 pages of “why” for the booster shot that Canadian government announced yesterday.

If anyone finds “where” they mention these are EUA approved ONLY please point it out in the comments……….