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Part B - Verifications and approval requirements 
The project description forms the basis for the environmental impact assessment which will 
rest on the foundation concepts under consideration. 
The exact specifications of the offshore wind turbine do not need to be final at this stage. 
However, the max. size, resp. the bandwidth with respect to the above-mentioned basic sys 
tem data, must be stated. Preliminary loading assumptions are only required for an offshore 
wind turbine in as far as these are required for the preliminary design of the foundation con 
cept. The development phase is complete upon the award of the preliminary design approval 
(1 st release). 
1.3.3 Design phase 
All tasks incorporated into the “Design” phase of the project are divided into three stages. 
During the first stage, the design basis and the subsoil model are finalised for each site where 
an offshore structure is to be located (e.g. offshore wind turbine or offshore station site). The 
minimum requirements pertaining to the content of the basic documents, the design rules and 
the planning results can be reviewed in the respective technical sections of this document. 
The basic documents, the design rules and all other planning results must be examined by the 
appointed inspector. This radically increases planning security for the second stage, the de 
tailed design of the primary and secondary support structures, in that the design basis and 
the site-specific boundary conditions have already been inspected and finalised. 
The final design of the primary and secondary support structures is completed during the sec 
ond stage. During this stage, no further basic documents are compiled. However, the design 
rules may be updated. During this stage, the emphasis is on specifying the planning results. 
The third and last stage of the “Design” project phase is aimed at completing the plans for 
installing, operating and decommissioning the structure. No further basic documents will be 
compiled at this stage. Neither will modifications be made to the design rules. 
The following planning results must be achieved: 
• Installation manual 
• Operations manual 
• Decommissioning concept. 
The offshore wind farm design phase is complete upon the award of the implementation ap 
proval (3 rd release). 
1.3.4 Implementation phase 
The implementation phase is divided into the following stages: Production, transport, installa 
tion and commissioning. These must be subjected to independent inspections and accord 
ingly documented by an appointed inspector 
At the end of each stage, the appointed inspector shall issue a certificate of conformity sum 
marising the inspection reports. The project certificate is issued together with the certificate of 
conformity pertaining to the monitoring of the commissioning phase and upon presentation of 
all other required certificates of conformity.