c. Any nonprofit organization which makes an election in accordance with subparagraph a. or subparagraph b. of this paragraph will continue to be liable for reimbursement payments in lieu of assessments until it files with the Department a written notice terminating its election of reimbursement payments not later than 30 days prior to the beginning of the taxable year for which such termination shall first be effective.
The term "reimbursement payments in lieu of assessments" means the money payments to the State Unemployment Compensation Fund in lieu of assessments (required under § 3348 of this title) by:
1. Nonprofit organizations, which are equivalent to the amount of regular benefits and the first week of extended benefits paid and one half of the extended benefits paid in subsequent weeks, which are attributable to service in the employ of such employers; and
2. Liable public employers, which are equivalent to the amount of regular benefits and extended benefits paid, which are attributable to service in the employ of such employers.