Mechanisms for obtaining needed research materials, including but not limited to biological material. They are frequently required when a provider of material or data deems it necessary in the following circumstances:
The material and/or information is proprietary;
The material or information is being maintained as a trade secret;
The material is infectious, hazardous or subject to special regulations;
The provider is concerned about potential liability; and/or
The provider wishes to obtain rights to the results of the research in which the material or information is to be used (COGR, 2003)