0027/nd guidelines for Marine Lifting and Lowering Operations

4.2 
SCOPE OF WORK LEADING TO AN APPROVAL 
4.2.1 
In order to issue Certificates of Approval, GL Noble Denton will typically require to consider, as 
applicable, the following topics: 

The strength of the structure to be lifted, including the strength of the lift points. 

The capacity of the crane, taking into account the radius at which the lift will take place, whether 
the crane will be fixed or revolving and whether any down-rating is required for operations in the 
design seastate. 

The capacity of the crane in the event that multiple hooks are used to suspend /upend a load. 

The rigging arrangement, including slings, shackles and any spreader frames or beams, and 
the certification of the rigging components. 

The stability of the crane vessel during the lift, especially in the case of a ballasting malfunction. 

The mooring arrangements for the crane vessel, as outlined in Section 4.3. 
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GUIDELINES
 
FOR
 
MARINE
 
LIFTING
 
&
 
LOWERING
 
OPERATIONS 
0027/ND Rev 11 
 
Page 19 of 84 

DP audit documentation and FMEA analysis and DP procedures detailing positioning systems 
(see Section 13.8 of 0001/ND, Ref. [1].) 

The limiting design weather conditions proposed and the anticipated behaviour of the crane 
vessel and the transport barge or vessel carrying the structure in those conditions. 

The arrangements for handling and mooring the transport barge or vessel alongside the crane 
vessel. 

The arrangements for cutting seafastenings before lifting. 

The management structure for the operations and Management of Change procedures. 

ROV performance documentation. 

Risk assessments, HAZOP / HAZID studies involving key personnel of all relevant parties. 

Simultaneous Marine Operations (SIMOPS). 

The completion of the preparations at the installation location to receive the structure. 
4.2.2 
The information required in order to issue a Certificate of Approval is listed in Appendix A. 
4.2.3 
Technical studies leading to the issue of a Certificate of Approval may consist of: 
a. 
Reviews of specifications, procedures and calculations submitted by the client or his 
contractors, or 
b. 
Independent analyses carried out by GL Noble Denton to verify the feasibility of the proposals, 
or
c. 
A combination of third party reviews and independent analyses.