Department of Interior - IBC

Description: Please use this form to make payments for your overpayment letter sent to you by the Interior Business Center. Payments made by you will only be applied to the overpayment ID specific by you, this can be found on the overpayment letter above your name. If you do not have or know your overpayment ID please contact the Customer Service Center at 888-367-1622.
Form Number: DOI - IBC

Department of Interior- IBC- Payroll- MSD

Description: Please use this form to make payments for your Military Service Deposit(MSD). Payments made by you will be applied to the amount described in your MSD letter from IBC. If you have questions about your MSD please contact the Customer Service Center at 888-367-1622.
Form Number: DOI - IBC - PAYROLL - MSD

IBC / Billings and Collections - Departmental Offices (DO)

Description: Use this form for monies owed to Office of the Secretary
Form Number: IBC OS

IBC / Billings and Collections - Millennium Challenge Corporation (MCC)

Description: Use this form for monies owed to Millennium Challenge Corporation (MCC)
Form Number: IBC MCC

IBC / Billings and Collections - National Transportation Safety Board (NTSB)

Description: Use this form for monies owed to the National Transportation Safety Board
Form Number: IBC NTSB

IBC / Billings and Collections - Office of the Special Council (OSC)

Description: Use this form for monies owed to Office of the Special Council
Form Number: IBC OSC

IBC / Billings and Collections - Trade and Development Agency (TDA)

Description: Use this form for monies owed to Trade and Development Agency (TDA)
Form Number: IBC TDA

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