19 CAR § 12-306
(b) Services may include, but are not limited to:
(c) Master custodian.
(2) Master custodial services will include, but not be limited to:
(i) Online security clearing;
(ii) Settlement of securities on a delivery-versus-payment basis; and
(D) Providing for the safekeeping of all documents and financial instruments physically held in custody.
(2) These services may include, but not be limited to: