"Replacement employer" means an employer as defined in § 51.1-124.3 who enters into a written agreement with the Retirement System to assume all liabilities for retirement benefits, as provided herein due to a member or beneficiary whose coverage under the Retirement System is affected by the withdrawal of the withdrawing employer, that are attributable to service with and creditable compensation from the withdrawing employer.
"Termination date" means the effective date of a change in an employer's status from an agency or political subdivision of the Commonwealth or the termination of the employer's existence that shall cause an employer participating in the Retirement System to become a withdrawing employer. If such date is in question or if the advance notification required by subsection C is not given, the termination date shall be the date determined by the Board.
"Termination event" means an event that results in an employer which participates in the Retirement System ceasing to be an agency or political subdivision of the Commonwealth.
"Withdrawing employer" means an employer that is required to withdraw from the Retirement System under subsection B.
Va. Code § 51.1-124.12