Criteria for issuance and maintenance of special investigation credentials
Series: Procedure instruction letter -- no. I12-III-02
Publisher: U.S. Department of Labor, Mine Safety and Health Adminstration
Published: 2012
Place of publication: Arlington, Virginia]
Language: eng
Subjects: Employees; Training of; Mine safety; United States. Mine Safety and Health Administration
Notes: Title from subject line (viewed on May 31, 2013).

Format not distributed to depository libraries.

"Effective Date: 08/22/2012, Expiration Date: 03/31/2014."