All observational protocols require a two working day review period.
When using any vertebrate animal in activities under the auspice of The Pennsylvania State University as defined by the PSU Policy RA-15 . The approval expiration date is the same as originally approved or renewed. All modifications during those three years must be incorporated into the three-year review form. According to Animal Welfare Act, Policy 12, animal procedures that may cause pain or distress require a literature search for alternatives.