Federal prosecutors say the former president and CEO of a New Jersey-based company surrendered Thursday to face charges of overcharging the government for overseas reconstruction projects, including Afghanistan.

Derish Wolff faces a six-count indictment.

Prosecutors allege Wolff led a scheme to overbill the U.S. government in connection with hundreds of millions of dollars in overseas reconstruction projects over a nearly 20-year period.

Wolff once led international engineering consulting firm Louis Berger Group, which is based in Morristown. The contractor managed more than $1 billion in reconstruction contracts in Afghanistan.

The company issued a statement saying it has made substantial changes to its accounting practices and remains eligible for government contracts.

Wolff is scheduled to make an initial court appearance in Newark in the afternoon.