scope:

This process shall apply to the procurement of the following components:

•Common crossing

• Obtuse crossing

• Switches

• Switch diamonds

• Slip switches 

• Adjustment switches

• Glued Joints

• Twist rail

• Transition rails

• Twisted glued joints

• Check rails

• Closure rail

for use on Network Rail infrastructure.

Purpose

The purpose of this document is to advise all parties within the maintenance function of their roles and responsibilities in the planning and ordering process for maintenance Switch & Crossing (S&C) Units.