Under the CPA and associated its regulations, consumers are protected against unfair unilateral amendments. The CPA and its regulations limit the ability of suppliers to unilaterally revise Internet Agreements.
Suppliers may amend, renew or extend the term of the agreement by explicit agreement to proposal under the following circumstances:
a) the supplier makes a proposal for amendment, renewal or extension; b) the supplier provides to the consumer an update of all information required by the CPA and the update reflects the effect of the proposal, amendment or renewal; and c) the consumer explicitly agrees to the proposal.
Suppliers may amend, renew or extend the term of the agreement in accordance with the Internet Agreement under the following circumstances:
a) the agreement indicates what elements of the agreement the supplier may propose to amend, renew or extend and at what intervals the supplier may propose an amendment, renewal or extension; b) notice of amendment, renewal or extension is provided at least 30 but no more than 90 days in advance of the date that the amendment, renewal or extension takes effect; c) the consumer is given a copy of the amended agreement; and d) the supplier provides the consumer with at least two options: (i) to terminate the agreement, and (ii) to retain the existing agreement unchanged as an alternative to accepting the proposed amendment.
Make sure to keep in mind that this set of rules exist and make sure to discuss with your legal counsel these and other rules that will affect your site terms.