The phrase "additional responsibility for" is correct and usable in written English.
You can use it when discussing extra duties or obligations assigned to someone in a specific context, such as a job or project.
Example: "In this new role, you will have additional responsibility for managing the team’s budget."
Alternatives: "extra duties regarding" or "further obligations for".
Stewart's departure is a blow to M&S which last week handed him additional responsibility for its property portfolio.
He rose to vice chairman and worldwide creative director in 1992, and from 1996 through 1998 held additional responsibility for New York creative duties.
Khan is seeking additional responsibility for the spending of property taxes raised in London, and wants London government to more directly run skills training and further education.
He joined The Times in 1998 as vice president for labor relations and took over additional responsibility for production the next year.
And it will soon be boosted again with Moore bumped up to the executive team, with a new title of director of content with additional responsibility for BBC Sport.
The report calls on Ofcom - which recently handed the ASA additional responsibility for TV and radio commercials - to review the role of the watchdog, "with a view to improving its effectiveness".
None of them have powers to evacuate a given area, redirect the distribution of health care supplies, or to collaborate with other health care providers in the community and assign them additional responsibilities for a coordinated response.
Separately, it announced additional responsibilities for two executives of The New York Times Media Group, which includes The Times, The International Herald Tribune and their Web sites.
If a woman has no primary care doctor, the radiologist has additional responsibilities for follow-up care under the regulations.
Mr. Pietrosimone said that with the loss of manpower, other city employees were being asked to shoulder additional responsibilities for added compensation.
He was given the additional responsibilities for the adjoining area of Orakzai when the Pakistani military began an offensive against the Taliban stronghold of South Waziristan in October.
