A major re-organisation to improve services at Suffolk County Council, where 79 jobs could be cut over three years, has been approved.
The plan, which would see the council cutting 17% of the 464 full-time posts at the authority to help save £4.1m, was backed by councillors on Thursday.
Its Securing the Future programme aims to avoid duplication of services.
Union Unison has voiced concerns that the council wants to transfer services to voluntary and private organisations.
Paul Charlton, Unison branch secretary, said earlier that it was making workers feel "insecure" about their future at Suffolk County Council.
The radical reorganisation of Suffolk County Council got approval at a Full Council meeting.
A council spokeswoman said the plans "will cut out departmental duplication and ensure continued, efficient delivery of services for the future".
She said: "The new structure is designed to achieve significant cost reductions which is needed to avoid a year-on-year deterioration of front-line services, due to reduced funding each year."
The first phase could bring savings of £4.1m over three years and a second phase could see additional savings of £10.6m - £14m by 2011.