The following sample designates the piece marking for shop fabricated piping: Example Piece Mark: 03000001X5A-1001-MK-1A WBS Number (note 1): AAABBBCCDEF-XXXX-MK-YZ Line Number: AAABBBCCDEF-XXXX-MK-YZ Sheet Number (note 3): AAABBBCCDEF-XXXX-MK-YZ Sequence Letter (note 4): AAABBBCCDEF-XXXX-MK-YZ Notes: 1. For Construction Work Package Number see Project Specification L2CC-000-50PR-0001/SLCPL-50-02. 2. For geographic coloring codes see Project Specification L2CC-000-50-SP-5030/ SLCPL-50-09. 3. Sheet numbers may be up to sheet 99 per line number. 4. Sequence letters are alphabetic characters A – Z, excluding characters I, O, & Q.