District field change requests for adding proximity detection systems

• Pubblicazione: [Arlington, Virginia] : , : [U.S. Department of Labor, Mine Safety and Health Adminstration], , 2012
• Descrizione fisica: 1 online resource (3 pages)
• Soggetto topico: Mining machinery - Safety regulations - United States; Mine safety - Safety regulations - United States
• Note generali: Title from subject line (viewed on May 3, 2013).; "Effective Date: 07/26/2012, Expiration Date: 03/31/2014."
• Titolo autorizzato: District field change requests for adding proximity detection systems
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910704557203321
• Lo trovi qui: Univ. Federico II