If the former carrier is shown as a participating carrier under concurrence in tariffs issued by other carriers or is shown as a participating carrier under power of attorney in tariffs issued by agents, the issuing carriers and agents of such tariffs shall, upon receipt of the adoption notice, promptly file on statutory notice the following amendments to their respective tariffs:

(a) Cancel the name of the former carrier from the list of participating carriers.

(b) Add the adopting carrier (in alphabetical order) to the list of participating carriers. If the adopting carrier already participates in such tariff, reference to the substitution notice shall be added in connection with such carrier's name in the list of participating carriers.