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Part  B  -  Verifications  and  approval  requirements

-  Verification  pertaining  to  the  transport  and  installation  states
With  respect  to  the  operation,  all  modifications  resulting  from  ongoing  operations ­
  shall  be  documented  in  the  operations  manual  which  shall  be  accordingly ­
  updated.
[Doc.  No.  252]  Annual  certificate  of  conformity  confirming  that  tests  and  inspections  have
been  carried  out  in  accordance  with  Doc.  No.  250  and  in  compliance  with  the
test  and  inspection  plan  for  periodic  inspections.

2.6  Decommissioning  phase
2.6.1  Preliminary  remarks
When  operations  cease,  the  offshore  structures  are  generally  to  be  decommissioned.  This  requires ­
  a  detailed  plan  to  be  drawn  up  and  a  verified  version  presented  to  the  BSH  for  approval. ­

The  approval  holder  is  responsible  for  compiling  a  decommissioning  instruction  manual.  The
objective  of  the  decommissioning  instruction  manual  is  to  provide  a  plausible  representation
of  all  the  processes  involved  and  the  respective  technical  boundary  conditions.
The  detailed  final  design  for  carrying  out  the  decommissioning  work  is  the  responsibility  of  the
approval  holder  in  cooperation  with  the  respective  contractor  and  shall  take  due  consideration ­
  of  the  legal  provisions  and  be  accordingly  inspected  by  the  appointed  inspector.  This  plan
shall  be  compiled  under  consideration  of  the  equipment  that  is  actually  going  to  be  used  and
the  respective  conditions,  including  but  not  limited  to  the  following  points:
•  Project  management
•  Verification  of  the  design  documentation
•  Verification  pertaining  to  transport  and  transport  safeguards
•  OVC  (Offshore  Vehicle  Coordinator)
•  Verification  of  the  disassembly  concept,  e.  g.  regarding  the  buoyancy  of  the  structure  (e.  g.
the  operational  structure  (topside)),  ensuring  adequate  buoyant  force  and  a  sufficient  distance ­
  from  the  base  of  the  body  of  water
•  Verification  of  the  components  is  achieved  through  a  visual  examination  and  includes,
among  others,  material  verifications,  correct  disassembly  conditions,  anchor  devices,  disposal ­
  verifications  and
•  Risk  analyses.
For  the  decommissioning  phase,  all  the  major  components  and  installations,  resp.  disassembled ­
  parts,  shall  be  accordingly  represented  -  from  the  decommissioning  location  to  being
transported  to  the  port  -  in  order  to  minimise  the  risks.  The  verifications  are  analogous  to
those  required  during  installation.
The  decommissioning  instruction  manual  does  not  need  to  be  updated;  changes  shall  be
documented  and  coordinated  with  the  approval  authority.

2.6.2  Technical  codes  of  practice
The  following  technical  codes  of  practice,  among  others,  in  their  respective  current  version,  as
well  as  the  current  state  of  the  art,  shall  apply: