Except for motor carriers of property, concurrences and powers of attorney shall not be filed with the Commission. However, a carrier may not participate in a tariff issued in the name of another carrier or an agent unless a power of attorney or concurrence has been executed. Absent effective concurrences or powers of attorney, tariffs are void. Should a challenge to a tariff be made on this basis, carriers will be required to submit the necessary proof. (See Subpart B).
Ill. Admin. Code tit. 92, § 1225.40