For purposes of this chapter, a health club shall be considered a new health club and subject to the requirements of a bond or letter of credit at the time the health club changes ownership. Any health club that has more than 50 percent ownership by the same person or persons shall be considered as owned by the same owner. A change in ownership shall not release, cancel, or terminate liability under any bond or letter of credit previously filed unless the Commissioner agrees in writing to such release, cancellation, or termination because the new owner has filed a new bond or letter of credit for the benefit of the previous owner’s members or because the former owner has refunded all unearned payments to its members. Every change in ownership shall be reported in writing to the Commissioner at least 10 days prior to the effective date of the change in ownership.