W. Va. Code § 48-31-402: Consent procedure for terminating temporary grant of custodial responsibility established by court order.

At any time after a deploying parent returns from deployment, the deploying parent and the other parent may file with the court an agreement to terminate a temporary order for custodial responsibility. After an agreement has been filed, the court shall issue an order terminating the temporary order effective on the date specified in the agreement. If a date is not specified, the order is effective immediately.