Changes in individual ownership, corporate or partnership structure location or drug-handling activity, shall be submitted by Form FDA-2656 (Registration of Drug Establishment) as amendment to registration within 5 days of such changes. A change in a registered establishment's firm name within 6 months of the registration of the establishment is required to be supported by a signed statement of the establishment's owner or operator that the change is not made for the purpose of changing the name of the manufacturer of a drug product under Sec. 201.1 of this chapter. Changes in the names of officers and directors of the corporations do not require such amendment but must be shown at time of annual registration. [45 FR 25777, Apr. 15, 1980, as amended at 55 FR 11577, Mar. 29, 1990]