The OET administration predetermines the venue for the OET on paper, as is the case with the OET dates. These venues are testing partners for the OET, and hence you have to choose one among them. However, if you want to change the venue of the test and choose a different venue mentioned in the list of OET testing partners, you may do that provided it is done before the OET registration date ends with the fee of $120. Always plan well in advance as to which venue suits you the most, depending upon your convenience, in order to evade unnecessary trouble.