Employment and Social Development Canada (ESDC) has reduced wait times at Canadian airports by temporarily suspending mandatory randomized COVID testing at airports. This measure is in effect from June 11 to June 30, 2022. 

Unvaccinated travellers will still be tested on-site.

As of July 1, 2022, all testing, including for unvaccinated travellers, including temporary foreign workers, will be performed off-site.

More details are forthcoming for employers.

 Source:  Employment and Social Development Canada June 10, 2022