It is unnecessary for the official who made the levy to surrender the contract document to the insuring organization upon which the levy is made. However, the notice of levy will include a certification by the official who made the levy that a copy of the notice of levy has been mailed to the person against whom the tax is assessed at that person's last known address. At the time of service of the notice of levy, the levy is effective with respect to the cash loan value of the insurance contract, subject to the condition that if the levy is not satisfied or released before the 90th day after the date of service, the levy can be satisfied only by payment of the amount described in paragraph (c) of this section. Other than satisfaction or release of the levy, no event during the 90-day period subsequent to the date of service of the notice of levy shall release the cash loan value from the effect of the levy. For example, the termination of the policy by the taxpayer or by the death of the insured during such 90-day period shall not release the levy. For the rules relating to the time when the insuring organization is to pay over the required amount, see paragraph (c) of this section.
27 C.F.R. § 70.164
26 U.S.C. 6332