North Dakota Century Code Title 51. Sales and Exchanges § 51-27-05. (Contingent expiration date--See note) Toll-free number

1. A sender initiating the transmission of a commercial electronic mail message shall establish a toll-free telephone number, a valid sender-operated return electronic mail address, or another easy-to-use electronic method that the recipient of the commercial electronic mail message may call or access by electronic mail or other electronic means to notify the sender not to transmit any further unsolicited commercial electronic mail messages. The notification process may include the ability for the commercial electronic mail messages recipient to direct the initiator to transmit or not transmit particular commercial electronic mail messages based upon products, services, divisions, organizations, companies, or other selections of the recipient's choice.

2. A commercial electronic mail message must include a statement informing the recipient of a toll-free telephone number that the recipient may call, or a valid return address to which the recipient may write or access by electronic mail or another electronic method established by the initiator, notifying the sender not to transmit to the recipient any further unsolicited commercial electronic mail messages to the electronic mail address specified by the recipient, and explaining the manner in which the recipient may specify what commercial electronic mail messages the recipient does and does not want to receive.