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المؤلفون: John, Lori, Redington, Mike, Rutyna, Eve, Grace, Nathan, Shanahan, Felicity, John A. Volpe National Transportation Systems Center (U.S.), MacroSys Research and Technology (Firm)
المساهمون: United States. Federal Transit Administration. Office of Safety and Security
مصطلحات موضوعية: Alcohol tests, Drug tests, Employees, Trend (Statistics), Random testing, Safety-sensitive, Violation rate
جغرافية الموضوع: United States
وصف الملف: PDF
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المؤلفون: John, Lori, Redington, Mike, Rutyna, Eve, Grace, Nathan, Shanahan, Felicity, John A. Volpe National Transportation Systems Center (U.S.), MacroSys Research and Technology (Firm)
المساهمون: United States. Federal Transit Administration. Office of Safety and Security
مصطلحات موضوعية: Alcohol tests, Drug tests, Employees, Trend (Statistics), Random breath tests, Random testing, Safety-sensitive, Violation rate
جغرافية الموضوع: United States
وصف الملف: PDF