2006M 207-2006 Standard Specification for Reinforced Concrete Elliptical Culvert@ Storm Drain and Sewer Pipe (ASTM Designation C 507-05a; Renumbered as M 207M/M 207)
2004M 207-2004 Standard Specification for Reinforced Concrete Elliptical Culvert@ Storm Drain and Sewer Pipe (ASTM Designation C 507-02)
2002M 207-2002 Standard Specification for Reinforced Concrete Elliptical Culvert@ Storm Drain and Sewer Pipe (HM-22; Part IA; ASTM Designation C 507-99)