1.  The schedule for the disposition of test folders is provided on the front of each test folder.  The responsible testing official indicates the recommended retention period.  The imprint is illustrated below:
 

DISPOSITION RECOMMENDATION Check the Appropriate Category for This Folder (see back cover for criteria) ________ Destroy 3 years after date of certificate or report ________ Destroy 20 years after date of certificate or report Signature __________________________________________ Date ______________________________________________

2.  Folders for tests of a routine nature will normally be designated for disposal after three years.  Only a very small percentage of test folders will be designated for more than the three-year retention.

3.  Duplicate copies of test reports maintained by the organizational units for reference purposes may be disposed of at the discretion of the chief of the organizational unit.

4.  Test folders having the characteristics described below should be retained for 20 years:

a.  Those that relate to the development of new and significant testing techniques;

b.  Those that relate to new and significant arts and materials; and

c.  Those that relate to basic national and international weights and measures.

5.  The National Archives may select for permanent retention additional folders if the test becomes the subject of Congressional investigation or comes under intensive public scrutiny, or if the test is involved in court decisions or legislative actions affecting the functions and activities of NIST.

6.  Questions should be directed to Records Management, Management and Organization Division (at Boulder, the Engineering, Maintenance and Support Services Division).