(a) A person nominated under 7-6.3 or designated under 7-6.9 as custodian may decline to serve by delivering a valid disclaimer to the person who made the nomination or to the transferor or the transferor's legal representative. If the event giving rise to a transfer has not occurred and no substitute custodian able, willing, and eligible to serve was nominated under 7-6.3, the person who made the nomination may nominate a substitute custodian under 7-6.3; otherwise the transferor or the transferor's legal representative shall designate a substitute custodian at the time of the transfer, in either case from among the persons eligible to serve as custodian for that kind of property under paragraph (a) of 7-6.9. The custodian so designated has the rights of a successor custodian.

(b) A custodian at any time may designate a trust company or an adult other than a transferor under 7-6.4 as successor custodian by executing and dating an instrument of designation before a subscribing witness other than the successor. If the instrument of designation does not contain or is not accompanied by the resignation of the custodian, the designation of the successor does not take effect until the custodian resigns, dies, become incapacitated, or is removed. The transferor may designate one or more persons as successor custodian to serve in the designated order of priority, in case the custodian originally designated or a prior successor custodian is unable, declines, or is ineligible to serve or resigns, dies, becomes incapacitated, or is removed. The designation either (1) shall be made in the same transaction and by the same document by which the transfer is made, or (2) shall be made by executing and dating a separate instrument of designation before a subscribing witness other than a successor as a part of the same transaction and contemporaneously with the execution of the document by which the transfer is made. The designation is made by setting forth the successor custodian's name, followed in substance by the words: "is designated successor custodian." A successor custodian designated by the transferor may be a trust company or an adult other than the transferor. A successor custodian effectively designated by the transferor has priority over a successor custodian designated by a custodian.

(c) A custodian may resign at any time by delivering written notice to the minor if the minor has attained the age of fourteen years and to the successor custodian and by delivering the custodial property to the successor custodian.

(d) If the transferor has not effectively designated one or more successor custodians and a custodian is ineligible, dies, or becomes incapacitated without having effectively designated a successor and the minor has attained the age of fourteen years, the minor may designate as successor custodian, in the manner prescribed in paragraph (b), an adult member of the minor's family, a guardian of the minor, or a trust company. If the minor has not attained the age of fourteen years or fails to act within sixty days after the ineligibility, death, or incapacity, the guardian of the minor becomes successor custodian. If the minor has no guardian or the guardian declines to act, the transferor, the legal representative of the transferor or of the custodian, an adult member of the minor's family, or any other interested person may petition the court to designate a successor custodian.

(e) A custodian who declines to serve under paragraph (a) or resigns under paragraph (c), or the legal representative of a deceased or incapacitated custodian, as soon as practicable, shall put the custodial property and records in the possession and control of the successor custodian. The successor custodian by action may enforce the obligation to deliver custodial property and records and becomes responsible for each item as received.

(f) A transferor, the legal representative of a transferor, an adult member of the minor's family, a guardian of the minor, or the minor if the minor has attained the age of fourteen years may petition the court to remove the custodian for cause and to designate a successor custodian other than a transferor under 7-6.4 or to require the custodian to give appropriate bond.