According to §28 (1) of the General Study and Examination Regulations for Bachelor and Master degree programs of the Hamburg University of Technology (ASPO), the day of the exam review will be determined and announced on the day of the exam.
If you cannot appear yourself, there is the possibility to issue a power of attorney.
The power of attorney has to be brought along by the authorized person on the date of the examination review. Furthermore, a copy of the ID card of the person granting the power of attorney must be brought along, and the authorized person must also identify himself/herself via ID card.
The power of attorney and the copy of the ID card remain with the examination documents. You are welcome to send the documents to the institute staff in advance via e-mail.