Va. Code Ann. § 53.1-1.1

The Department shall offer debit or prepaid telephone systems, in addition to any existing collect calling systems, which allow telephone calls to be placed to the telephone number or numbers on an approved call list. Such telephone systems shall be established with the lowest available rates. The maximum number of telephone numbers permitted on an approved call list shall be no fewer than 20. The Department shall not receive any commission from such telephone systems.