39 CFR 501.4: Changes in ownership or control, bankruptcy, or insolvency.

(a) Any person or entity authorized under § 501.2 must promptly notify the Postal Service when it has a reasonable expectation that there may be a change in its ownership or control including changes in the ownership of an affiliate which exercises control over its Postage Evidencing System operations in the United States. A change of ownership or control within the meaning of this section includes entry into a strategic alliance or other agreement whereby a third party either has access to data related to the security of the system or is a competitor to the Postal Service. Any person or entity seeking to acquire ownership or control of a person or entity authorized under § 501.2 must provide the Postal Service satisfactory evidence that upon completion of the contemplated transaction, it will satisfy the conditions for approval stated in § 501.2. Early notification of a proposed change in ownership or control will facilitate expeditious review of an application to acquire ownership or control under this section.

(b) Any person or entity authorized under § 501.2 must promptly notify the Postal Service when it has a reasonable expectation that there may be a change in the status of its financial condition either through bankruptcy, insolvency, assignment for the benefit of creditors, or other similar financial action. Any person or entity authorized under § 501.2 who experiences a change in the status of its financial condition may, at the discretion of the Postal Service, have its authorization under § 501.2 modified or terminated.