John Green, the county commissioner from the 5th District, has tendered his resignation from the commission after moving to a White County address.County Mayor Mike Foster informed the commission at Thursday night’s all-committees meeting that Green had turned in his resignation letter on April 8.“I am writing to inform the DeKalb County Mayor and County Commission that I, John D. Green, as of April 8, 2013, am resigning from my current position as 5th District county commissioner,” read the letter. “As of March 30, 2013 my permanent address has changed to White County,” the missive concluded.Green served as county commissioner for 11 years.He was first elected in 2002 and then re-elected in 2006 and 2010.The mayor said the county will advertise for applications from interested parties who live in the 5th District to fill Green’s term.The commissioners will interview the applicants and vote on a replacement to serve the remainder of Green's term, which expires Aug. 31, 2014.The mayor also announced the departure of Chip Cook, the director of the local ambulance service,Cook is resigning effective May 15.Assistant Director Hoyte Hale will be act as director until the county can advertise for the position, accept applications, and vote in a new director.Meanwhile, the county budget committee will start working on the 2013-14 county spending plan in a meeting on April 24 at 6 p.m. at the courthouse.The mayor told the commission that planning may be difficult because of uncertainty over the federal Affordable Care Act (Obama Care) which must be implemented by next year. Because of changes wrought by the new law, the county may need to find money to pay for possible increases in county employee health insurance costs, which could rise by as much as several hundred thousand dollars.