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c. Welder qualifications,
d. Nondestructive testing,
e. Destructive testing (e.g., full-scale blade tests), and
f. Blade materials and fabrication.
4. A CVA for the installation stage will need expertise in
a. Evaluation of installation plans and procedures;
b. Witnessing of installation operations including loadout, towing,
launching, uprighting, submergence, and so forth;
c. Marine operations;
d. Subsea cabling activities including trenching, burial, and connections;
e. Offshore construction activities; and
f. Installation equipment.
5. The CVA for design, for fabrication, and for installation need not be
the same organization or person, and it is unlikely that a single person
would have sufficient expertise to lead an effective CVA for all phases.
6. It would be beneficial, though not essential, for a CVA to have experi-
ence in third-party reviews and in interacting with regulatory agencies.
7. Given the variety of controlling environmental loads (e.g., hurricanes,
seismic activity, ice loads) and installation requirements (e.g., mudslide
areas, tidal erosion effects) in U.S. waters, the CVA's experience should
be related to the installation location.
8. Experience with the use of project-specific CVA approval in the offshore
oil and gas CVA industry indicates that project-specific approval of
CVAs is better than maintenance of a list of BOEMRE-accepted CVAs.
Recommendations
The committee recommends the following with regard to CVA qual-
ifications:
1. In evaluating potential CVAs, BOEMRE should seek organizations
and individuals that
a. Are independent and objective;
b. Have experience, technical expertise, and engineering judgment suf-
ficient to verify assumptions, conclusions, and results independently;
c. Have experience with the dominant environmental effects for the
project location (e.g., earthquake-resistant design experience for
offshore West Coast locations);
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