Part C - Time sequence 
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Part C: Time sequence 
1 General 
The time sequence of a project generally extends through the following sections (see Table 2): 
• Development phase 
• Design phase 
• Implementation phase (production, transport, installation, commissioning) 
• Operating phase 
• Decommissioning phase 
The required documents shall be presented to the approval authority for inspection and approval in good 
time during the individual project phases (see Table 2). Furthermore, the body responsible for the project 
shall ensure that the approval authority is continuously included in the project phases. 
Prior to the issue of an approval, it is necessary to conduct a preliminary survey of the site in order to 
record all site conditions relevant for the design, this forming the starting point for a design basis and a 
preliminary study. The purpose is to establish whether the site meets the technical criteria for installation 
and operation of an offshore wind park. 
The design basis that also has to be prepared and presented at regular intervals in the approval process 
during the development phase generally contains the initial technical requirements. This contains all 
data and figures required for the particular element of the offshore wind park at its relevant site as well as 
certification methods that are required for drafting a stable and serviceable construction in accordance 
with the generally recognised state of the art or, failing that, the state of current scientific progress. It is 
based on qualified investigations and expert reports. The design basis as well as the preliminary draft 
prepared from it form part of the application documents that are used as the basis for assessing the 
approval preconditions within the scope of the decision on whether the project may be approved. 
A certifier/registered inspector performs a plausibility check of the design basis and a preliminary draft 
based on it. This involves the certifier/registered inspector testing both the plausibility of the site condi 
tions and their data sources as well as the plausibility of the preliminary draft and the methodology used. 
The test report shall be presented to the approval authority. 
2 Development phase 
The site data shall be assembled based on qualified reports in order to ascertain the design basis and 
the basic design, this site data including for example: 
• Meteorological and oceanographical reports (wind, waves, currents, bathymetry, etc.) 
• Geotechnical report 
• Other reports, e.g. on icing, scouring, etc. 
The correlation between individual site conditions shall be presented, in particular the correlation of wind 
and waves. The survey concept for preparing the geotechnical report shall be agreed with the certifier/ 
registered inspector and the approval authority on the basis of the „Standard Baugrunderkundung“ JdJ of 
the BSH in its current version before the start of the survey. Deviations from the „Standard Baugrunder 
kundung“ JTj shall be applied for to the BSH, presenting their equivalence, and justified. 
The „collision friendliness“ (see Appendix T) shall be documented in a report for the draft of the support 
structure prepared on the basis of the site conditions, and included in the design basis and the prelimi 
nary draft.