Signature approval means that the Dean has delegated the decision authority for expenditures within a certain scope (i.e. a department) to an individual, generally the department Chair. This individual assumes responsibility for both the nature of the expense and the amount of the expense. Nature of the expense refers to whether it is appropriate to use the identified funds on that expenditure. Amount of the expense means that there are sufficient funds available to cover the expenditure. Individuals with signature authority should be familiar with UFS (University Financial Services) policies.
Examples of situations where the signature authorization form is needed:
The form may be found at this link: http://www.pdx.edu/financial-services/sites/www.pdx.edu.financial-services/files/PSU_Signature_Authorization.pdf
An example of how to fill out the form is below. Click on the image for a larger view.