Part B - Verifications and approval requirements 
23 
Phase 
Objectives 
Chapter 
Appointed inspector 
Approval authority 
Development 
Compilation of the site- 
specific data 
Determination of the 
design basis 
Preliminary design 
1 
1.3.2 
2.2 
3.2 
4.2 
Verification report and certificate 
of conformity 
Plausibility check* 
Preliminary design 
approval 
(1 st release, poss. incl. 
special measures) 
Design 
Final specification of 
the subsoil model for 
each offshore wind tur 
bine site and the off 
shore station 
More detailed specifica 
tion of the design basis 
1.3.3 
2.3 
3.3 
4.3 
Verification report and certificate 
of conformity 
Plausibility check* 
Design approval 
(2 nd release, poss. incl. 
special measures) 
Final design of the pri 
mary and secondary 
support structures 
Verification report and certificate 
of conformity 
Installation, operation 
and decommissioning 
planning 
Verification report and certificate 
of conformity 
Plausibility check* 
Implementation appro 
val (3 rd release, poss. 
incl. special measures) 
Implementa- 
tion 
Production 
1.3.4 
2.4 
3.4 
4.4 
Inspection reports and certificate 
of conformity pertaining to the 
monitoring of the production 
phase 
Plausibility check* 
Operating release 
(poss. incl. special 
measures) 
Transport 
Inspection reports and certificate 
of conformity pertaining to the 
monitoring of the transport phase 
Erection / installation 
Inspection reports and certificate 
of conformity pertaining to the 
monitoring of the erection/instal 
lation phase 
Commissioning 
Inspection reports and certificate 
of conformity pertaining to the 
monitoring of the commissioning 
phase 
As-built drawing, 
Operations manual, 
Test and inspection 
plan for periodic ins 
pections 
Verification reports pertaining to 
the as-built drawing, operations 
manual and test and inspection 
plan for periodic inspections 
Project certificate 
Operation 
Operation, maintenance 
and monitoring 
1.3.4 
2.5 
3.5 4.5 
Periodic inspections verification 
report and certificate of conformity 
Plausibility check* 
Maintenance or tem 
porary revocation of the 
operating permit 
Decommis- 
sioning 
Decommissioning 
planning 
1.3.6 
2.6 
3.6 
4.6 
Verification report and certificate 
of conformity pertaining to the 
decommissioning plan 
Plausibility check* 
Decommissioning re 
lease (poss. subject to 
specific requirements) 
Carrying out 
decommissioning 
Inspection reports and certificate 
of conformity pertaining to the 
decommissioning phase 
Plausibility check* 
and declaration stating 
that the measures have 
been completed 
Table 1 -1 : Timescale for offshore wind turbines 
Plausibility check carried out by the BSH, together with the BAM and BAW, and possibly a specially appointed 
inspector.