All individuals affiliated with CREN Member or Affiliate organizations are responsible for seeing that their communities are aware of these guidelines, and that the guidelines are followed, both in letter and in spirit. CREN networks are, at the discretion of the institutions involved, open to use by students enrolled at participating CREN Member or Affiliate educational institutions. The following examples may help users of the networks apply these principles in particular cases. Messages that are likely to result in the loss of recipients' work or systems are prohibited. CREN networks are not to be used for commercial purposes, such as marketing, reselling bandwith, or business transactions between commercial organizations.
Advertising is forbidden.
Discussion of a product's relative advantages and disadvantages by users of the product is encouraged. Vendors may respond to questions about their products as long as the responses are not in the nature of advertising. CREN networks may be used for the provision of services which support the needs and purposes of the CREN networks, and for which a charge is made, if the network is an optional mechanism for provision of this service for which no additional charge is made, and as long as the use of the service is consistent with the bandwidth of the network and the forwarding hosts. Any communication which violates applicable laws and regulations is not allowed. Users are requested to minimize the transmission of large files in order not to degrade network performance.