31 CFR 358.4 - Which bearer corpora or detached bearer coupons are eligible for conversion to transferable BECCS or CUBES securities?
(a) For a callable corpus to be eligible for conversion to a transferable BECCS security, all associated callable coupons must be submitted with the corpus. These callable coupons will be linked with the corpus within BECCS when converted. Once the coupons are linked to the corpus, they may not be transferred separately.
(b) A corpus that is not subject to call will be converted to a transferable BECCS security.
(c) Non-callable coupons will be converted to transferable CUBES securities.