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Part B - Verifications and approval requirements 
2.2 Development phase 
2.2.1 General 
In order to inspect and assess the design basis to be submitted, the appointed inspector shall 
be involved by the applicant at the earliest possible stage prior to dimensioning, resp. pre 
liminarily designing the installation structures. 
2.2.2 Requirements and required verifications 
2.2.2.1 Basic Prerequisites 
The structural considerations involved in generating the draft design, as well as, in the case of 
an offshore station, the functional description (chapterB5.2.1), can be derived from an initial 
operation and safety concept resulting from the safety requirements and requirements to fa 
cilitate shipping and occupational safety (e. g. identifying and illuminating the installations, 
contingency plans). 
2.2.2.2 Documents to be submitted when applying for the 1 st release 
[Doc. No. 210] 
[Doc. No. 211] 
[Doc. No. 212] 
[Doc. No. 213] 
Design basis, incl. the respective expert opinions 
Verification report and certificate of conformity pertaining to Doc. No. 210 
Preliminary design 
Verification report and certificate of conformity pertaining to Doc. No. 212 
With respect to the site conditions, the following minimal data shall be included in the design 
basis: 
• Wind park layout, such as the location and configuration of the offshore structures, incl. the 
coordinates of all the offshore wind turbines, offshore stations and any other constructional 
components (please refer to chapter B1.3.2) 
• Subsoil data (documents in accordance with chapter B3.2.3) 
• Wind data 
• Maritime conditions 
- Water depths 
- Water levels, wave data 
- Tides 
- Correlation of wind and waves 
- Ice drift 
- Currents 
- Scouring and morphodynamic changes of the seabed 
- Growth etc. 
The design basis shall also include the following information: 
• Definition of the loading conditions to be examined 
• Definition of the standards and guidelines (incl. their respective hierarchy) to be used for 
calculating the structural design, materials etc., as well as 
• The description of special verification methods where these are not based on the standards 
and guidelines.