3月16号之前获批永久居民的是可以入境的,参考
https://www.cbc.ca/news/politics/trudeau-march21-covid19-1.5505540
Applicants approved for permanent residence in Canada before the travel restrictions were announced March 16, but who have not travelled to Canada, are also exempted from the travel restrictions.
Foreign nationals coming to Canada through these program will be considered "essential travel" with regards to land border restrictions. They will be subject to screening measures before travel and must isolate for 14 days after arriving in Canada.