Counting Rows based on Date


Countless efforts consulting the community and using many of the recommended solutions continue to yield #unparseable results. I have a sheet with 2,000 rows. there is a "Begin_Date" field, formatted as a date field. I want to count in a separate sheet the records in the first sheet that fall on or after July 1, 2021.

In the separate sheet, I have the following where Transit Systems is the sheet with 2,000 rows:

=COUNTIFS(({Transit Systems Begin_Date}, >=DATE(2021,07,01)

What am i doing wrong with this simple calculation?