2006YD/T 5056-2005 Acceptance Specification for Fiber Optic Submarine Cable Transmission System Engineering
1997YD 5056-1998 Code for Acceptance of Fiber Optic Submarine Cable Transmission System Engineering
YD 5056-1998 Code for Acceptance of Fiber Optic Submarine Cable Transmission System Engineering was changed to YD/T 5056-2005 Acceptance Specification for Fiber Optic Submarine Cable Transmission System Engineering.