It became his official duty to present to the king all the reports from the various departments of state.
In a way, that even belongs to my official duties.
I met so many people in the course of my official duties.
In 1580 he was called back to Madrid by his official duties.
He found time for many things besides his official duties.
Even worse, Administration officials have not kept a wall between personal interests and official duties.
There are cops who go above and beyond their official duties.
In 1990, he went abroad on official duty and did not return.
Doctors held out little hope that he would be able to return to his official duties.
He was off official duty, but still had a private responsibility.