Due to implementation of the Canada–United States–Mexico Agreement (CUSMA) the North American Free Trade Agreement (NAFTA) instructions have been updated.
The key changes to the NAFTA instructions are that NAFTA has been superseded by CUSMA effective July 1, 2020; however, the Temporary Entry for Business Persons regulations stay the same. The only change is the name; hence, all applications will be processed as usual.
For more information read here