Sec. 8. (a) The department may prescribe qualifications a person must have to represent a taxpayer before the department. However, a person may not represent a taxpayer before the department, unless:
(1) the taxpayer is present at all times when the representation occurs; or
(2) the person representing the taxpayer has a properly executed power of attorney authorizing the person to represent the taxpayer.
(b) Notwithstanding any other law, the department may require a power of attorney relating to a listed tax to be completed on a form prescribed by the department.
(c) The department may accept a power of attorney that names an entity as a representative of a taxpayer, subject to rules adopted under IC 4-22-2. Notwithstanding this article or IC 30-5, the department may adopt rules under IC 4-22-2 allowing a change of individuals acting on behalf of the entity without requiring a new or amended power of attorney to be completed by the taxpayer.