the text of the order in council...affects air travelers flying to a US border city...clarifies as I read it that an American based negative test is the only acceptable test ie not the negative test used to board the originating flight. You are actually better off having had covid and recovered (antigen response). Common sense aside, one would think that having been innoculated outside Canada should be a valid acceptable condition as well given that you hve had an antigen response. but it is not. I checked around and it is not easy to find a test facility that will readily administer tests to non US citizens and if so, prices are obviously significant.

edit...confused if below clause replaces the US testing requirement which is missing from this replacement textAmendments to this Order



15 (1) Subsection 1.1‍(1) of this Order is replaced by the following:

Entering by means other than aircraft — COVID-19 molecular test and suitable quarantine plan

1.1 (1) Every person, before or when entering Canada by any means other than aircraft, must

(a) subject to subsection (2), if the person enters Canada by land and is five years of age or older, provide to the Minister of Health, screening officer or quarantine officer, as the case may be, evidence containing the following elements that they received either a negative result for a COVID-19 molecular test that was performed on a specimen collected no more than 72 hours before entering Canada or a positive result for the test that was performed on a specimen collected at least 14 days and no more than 90 days before entering Canada:

amended text below with result that test need not be conducted in the US for border crossings?


Entering by means other than aircraft — COVID-19 molecular test and quarantine plan

1.1 (1) Every person, before or when entering Canada by a mode of transport other than an aircraft, must

(a) subject to subsection (2), if the person enters Canada by land and is five years of age or older, provide to the Minister of Health, screening officer or quarantine officer, as the case may be, evidence containing the following elements that they received either a negative result for a COVID-19 molecular test that was performed in the United States on a specimen collected no more than 72 hours before entering Canada or a positive result for the test that was performed either in or outside of the United States on a specimen collected at least 14 days and no more than 90 days before entering Canada: