The phrase "an additional duty for" is correct and usable in written English.
It can be used when referring to an extra responsibility or task assigned to someone or something.
Example: "As part of the new project, there will be an additional duty for the team to manage client communications."
Alternatives: "an extra responsibility for" or "a supplementary task for".
Clearly, we of course have an additional duty to care for the children.
Moreover, given the ad hoc nature of the teams — F.E.T. members have "day jobs," serving as logisticians or intelligence officers or in other vital positions — their commanders are often understandably reticent to give up an individual for an additional duty.
Nonetheless, for example, CNs evaluate provision of psychosocial services in the community as an additional duty [ 31].
Any additional duties for the administration of the National Oceanographic Partnership Program that the Council considers appropriate.
* Seagate Technology Inc., Scotts Valley, Calif., expanded its relationship with its corporate brand agency, Foote, Cone & Belding, San Francisco, part of True North Communications, by awarding the agency additional duties for disk drive and tape drive products.
The Commission shall establish additional duties for any registrant described in subsection (m)(2)(C) in order to minimize conflicts of interest, protect data, ensure compliance, and guarantee the safety and security of the security-based swap data repository.
But it's not, for the most part, the fault of the psychiatrists, psychologists, therapists, community psychiatric nurses and all of the support and admin staff who make up the mental health services; they often work after hours and take on additional duties for no extra pay.
He said the owner emailed all employees, alerting them that they might need to pick up additional duties for co-workers who stayed home with their children.
For example, it gave a 5% additional duty credit and carved out separate allocations under existing market-promotion funds for the export of toys and sports goods.
(2) Special additional duties authorized for Reserves (including commissioned officers of the Reserve Corps of the Public Health Service) by an authority designated by the Secretary concerned and performed by them on a voluntary basis in connection with the prescribed training or maintenance activities of the units to which they are assigned.
