The former chief of contracts for International Relief & Development (IRD) in Arlington Va., one of the largest non-governmental organizations to work in Iraq and Afghanistan, has been indicted on federal bribery charges.

George E. Green, 57, was charged with steering contracts to an Afghan subcontractor as part of an agricultural program funded by the U.S. Agency for International Development (USAID). IRD had received a cooperative agreement to administer the agricultural program for the federal agency.

Green did not respond to an email seeking comment Friday.

“He pled not guilty at his arraignment and we will investigate the case and prepare a defense,” said Green’s lawyer, assistant federal defender Robert Arrambide. His attorney declined to discuss the charges.

Prosecutors say Green accepted $66,000 in bribes in exchange for directing work to the Afghan subcontractor. Some of the money was wired to a car dealer in San Severino Marche, Italy, in an attempt to conceal the payments, according to the indictment. Green, of Carrollton, Tex., allegedly structured cash deposits into his bank and credit card accounts to avoid federal currency reporting requirements.

Green was indicted Tuesday by a grand jury in Texas, charged with one count of conspiracy to structure financial transactions, one count of wire fraud and three counts of receiving bribes in connection with a program receiving federal funds. If convicted on all counts, Green faces a maximum of 55 years in prison.

In recent years, IRD has been one of the largest recipient of grants and cooperative agreements of any nonprofit organization funded by the USAID. The majority of IRD’s funding — 82 percent of $2.4 billion–went to USAID projects in the war zones, most of them in Iraq and Afghanistan.

Some of those projects came under sharp criticism by former IRD employees and federal auditors, who said millions were wasted amid allegations of fraud and mismanagement. IRD executives have disputed those claims, saying the nonprofit did the best it could under difficult circumstances in the war zones.

In 2011, USAID awarded a cooperative agreement to IRD for a project in Afghanistan called the Southern Regional Agriculture Development Program. Green worked for IRD between December 2011 and May 2012. During that time, prosecutors say he allegedly pledged to provide work to an Afghan subcontractor in exchange for the payments.

IRD officials said they became suspicious of Green’s activities and reported him to the authorities. Agents with the FBI, the Inspector General’s Office for USAID and the Special Inspector General for Afghanistan Reconstruction (SIGAR) began investigating.

“This indictment should serve as fair warning to anyone trying to rob the American taxpayer of their hard earned money,” said John F. Sopko, the Special Inspector General for Afghanistan. “Bribery involving U.S. contracts will not be tolerated.”