The maintenance, repair and overhaul, or MRO, deal was signed at the ILA Berlin Air Show by Airbus Helicopters and the NATO support agency, which was acting on behalf of the German law enforcement agency.
The value of the award was not disclosed, but Airbus said contract work would be performed over an initial three-year period, with provision for an additional two years.
A total of 41 EC135s are covered under the arrangement. The first is scheduled to arrive at Airbus Helicopters' Kassel-Calden maintenance facility before the end of this month.
"We are uniquely positioned to support the German Federal Police's helicopter inventory, bringing our full resources as the manufacturer of the EC135 to ensure their readiness," said Ulrich Amersdorffer, Airbus Helicopters vice president -- MRO Germany.
Services coming under the contract include phase inspections, engine inspections, replacement of operation time limit parts, and repair and overhaul of components.