Title
CorrespondeceDescription
Various correspondence regarding FRA safety rules, 1972.Creator
Association of American Railroads, Federal Railroad AdministrationDate(s) of Creation
1972Title
Recommended Rules for Inspection of Railroad BridgesDescription
Recommended bridge inspection rules from the AAR Engineering Division, September 1, 1972.Creator
Association of American RailroadsDate(s) of Creation
September 1, 1972Title
Safety Recommendation I-72-1Description
Safety recommendation adopted by the NTSB, May 26, 1972.Creator
National Transportation Safety BoardDate(s) of Creation
May 26, 1972