Federal law, as well as state laws, govern the release of contact lens prescriptions. In February 2004, a Federal Law called the "Fairness To Contact Lens Consumers" Act went into effect. This law mandates that patients be given their prescription as soon as they have been fitted, whether or not they ask for it. The Act requires sellers to verify prescriptions and gives prescribers a reasonable amount of time, 8 business hours, to respond. It also established that a contact lens prescription will expire within one year or at the time set by state law, whichever is greater.