This is the 16779th most frequent Russian word.
служебных
"Official" or "service-related."
Here, 'служебных' is used as an adjective describing 'помещениях,' meaning 'official' or 'work-related.'
Он разобрал документы в служебных помещениях.
He organized the documents in the official premises.
In this sentence, 'служебных' describes 'обязанностей,' implying 'work-related' or 'official.'
Служебных обязанностей у него было много.
He had many professional duties.
Here, 'служебных' modifies 'процедур,' indicating they are related to official or work tasks.