Washington State University
BUSINESS POLICIES AND PROCEDURES MANUAL
Interdepartmental Blanket Requisitions
To promote convenience and minimize paperwork, many University
vendor departments encourage the establishment of blanket requisitions.
Blanket requisitions provide authorization for specified transactions during
the active period of the requisition.
Requests for blanket requisitions are usually approved by the
vendor departments on a fiscal-year basis. One-month blankets may also be
At the beginning of the time period (month or year) the requisitioning department
requests the establishment of a blanket requisition by issuing an Interdepartmental
Requisition and Invoice (IRI). The IRI indicates the time period the requisition
is active, the kinds of goods and/or services which may be purchased under
the requisition, and includes an authorized signature for the indicated
University account(s) (see 70.02).
for more information regarding the IRI form.
The vendor department prepares an Interdepartmental Invoice
at the end of each month for each requisitioning department. The invoice
reflects the month's activity.
If the vendor uses the Service Center Billing System or the
Central Billing System, invoices for all goods and services provided
the previous month must be entered into the system by the end of the month.
At fiscal year's end, invoices must be entered into the University's accounting
system by the date indicated on the year-end processing calendar issued
by the Controller's Office.
Vendor departments are responsible for ensuring that IRIs used
for invoicing are sequentially numbered.
The vendor department may elect to begin a new number sequence at the beginning
of each biennium.