A census metropolitan area (CMA) is one or more
adjacent municipalities centred on a population centre that has a large number
of inhabitants. If you live outside of one of these CMAs, you get a small
amount added to your Climate Action Incentive credit. The CRA has more
information on the CMAs:
https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-re...
