This is the 9721st most frequent Spanish word.
atañen
"Atañen" means "concern" or "relate to."
The word 'atañen' here is used to indicate that the responsibilities are directly related to or implicate the director.
Esas responsabilidades atañen exclusivamente al director.
Those responsibilities pertain exclusively to the director.
Here, 'atañen' is used to describe that the regulations are relevant to or concern all employees.
Las nuevas regulaciones atañen a todos los empleados de la empresa.
The new regulations pertain to all the employees of the company.
In this sentence, 'atañen' shows that the changes have implications for or affect both groups mentioned.