Va. Code Ann. § 51.1-507

Any policy of insurance purchased under the authority of this chapter shall provide that all eligible employees shall be automatically insured. Any employee who notified his employer that he desired not to be insured, or any employee of a political subdivision who notified his employer prior to the effective date of coverage that he desired not to be insured, may thereafter become insured only upon presentation at his own expense of evidence of insurability satisfactory to the insuring company.