The bank administers the Kozloduy International Decommissioning Support Fund (KIDSF) that will finance the project.
"The objective of this project is the evaluation of the radiological status of the buildings, systems and equipment of units 1-4," the EBRD said in a statement.
The evaluation made by the consultant will be used for the design of the dismantling process and the management of the generated waste streams. The complete radiological inventory of units 1 to 4 is part of the decommissioning programme of the Kozloduy nuclear power plant.
Bulgaria has closed Kozloduy's Soviet-made four reactors of 440 megawatts each to address the nuclear safety concerns of the European Union prior to joining the bloc in 2007.
The EBRD provided no financial details about the project.
The anticipated start date is June 2009 and the evaluation is expected to last almost a year. Interested bidders are invited to express interest by January 12, 2009, 1400 local time.
Kozloduy now operates its remaining two reactors of 1,000 megawatts each.