Lymphoma Canada has kindly put together a collection of all provincial and territorial recommendations regarding Covid vaccines, for Lymphoma patients.

For your convenience, we reproduce their table of provincial links here.  But the Lymphoma Canada article goes further, with very valuable Q&As in the Canadian context.  It makes for recommended reading if you are concerned.

Province Provincial Recommendations for the Third COVID-19 Vaccine Dose
British Columbia http://www.bccdc.ca/health-info/diseases-conditions/covid-19/covid-19-vaccine/vaccine-registration-eligibility
Alberta https://www.alberta.ca/covid19-vaccine.aspx
Saskatchewan https://www.saskatchewan.ca/government/health-care-administration-and-provider-resources/treatment-procedures-and-guidelines/emerging-public-health-issues/2019-novel-coronavirus/covid-19-vaccine/vaccine-booking#check-your-eligibility
Manitoba https://www.gov.mb.ca/covid19/vaccine/eligibility-criteria.html
Ontario https://www.health.gov.on.ca/en/pro/programs/publichealth/coronavirus/docs/vaccine/COVID-19_vaccination_rec_special_populations.pdf
Quebec https://www.quebec.ca/en/health/health-issues/a-z/2019-coronavirus/progress-of-the-covid-19-vaccination/additional-dose-covid-19-vaccine
Newfoundland & Labrador https://www.gov.nl.ca/covid-19/vaccine/gettheshot/
Nova Scotia https://novascotia.ca/coronavirus/immunocompromised/

https://www.halifaxtoday.ca/coronavirus-covid-19-local-news/immunocompromised-should-receive-3rd-covid-19-mrna-vaccine-immunization-panel-4321929
Prince Edward Island https://www.cbc.ca/news/canada/prince-edward-island/pei-third-dose-covid-vaccine-immune-compromised-islanders-1.6175366
New Brunswick https://www2.gnb.ca/content/gnb/en/corporate/promo/covid-19/nb-vaccine.html

This URL appears to no longer exist at its owner’s website; you’ll have to rely on the URL above.  https://en.horizonnb.ca/media/1285743/2021-09-23_declaration_eligibility_third_dose_en.pdf
Northwest Territories https://www.nthssa.ca/en/newsroom/public-notice-third-dose-vaccinations-specified-frontline-workers-and-immunocompromised
Yukon https://yukon.ca/en/news/third-doses-covid-19-vaccine-be-available-select-group-immunocompromised-yukoners
Nunavut No public statement released yet on the 3rd COVID-19 vaccine dose.