Rules & Guidelines
The GL Noble Denton Technical Guidelines and Rules are developed through extensive research and development, the know-how and experience of our engineers and the close feedback of our worldwide network of technical experts. Our Guidelines and Rules represent the current state of scientific development and industry practice.
0001/ND - Rev 0 - 22 June 2013 - General Guidelines for Marine Projects
These guidelines present material that is common to more than one of the other GL Noble Denton guidelines for the approval of marine projects and was previously duplicated.
0009/ND Rev 7 - 22 June 2013 - Guidelines for Elevated Operations of Jack-Ups
These guidelines will be used by GL Noble Denton for the assessment of self-elevating platforms in the elevated condition. They address:
- General feasibility studies, including optional checks for punch-through resistance and fatigue; such studies may result in a Statement of Compliance
- Assessment for specific locations; such studies may result in a Certificate of Approval.
0013/ND Rev 7 - 22 June 2013 - Guidelines for Load-Outs
These guidelines have been developed for the loadout of items including offshore jackets, SPAR sections, modules, bridges and components from the shore onto floating or grounded barges and ships.
0015/ND Rev 4 - 22 June 2013 - Concrete Offshore Gravity Structure Construction and Installation
These guidelines have been developed for the marine aspects of construction, towage and installation of offshore concrete Gravity Base Structures (GBS) with a deck. They are intended to be applicable to deep draft structures, where much of the construction work is carried out afloat, as well as shallower draft structures where the construction of the GBS can be essentially completed in dry dock.
0016/ND Rev 7 - 22 June 2013 Seabed and Sub-seabed Data for Approvals of Mobile Offshore Units
These guidelines describe the seabed and sub-seabed data required by GL Noble Denton to assess the suitability of locations for independent leg and mat-supported jack-up units, other mobile units operating on the seabed, and anchor installation and performance assessments for floating units.
0021/ND Rev 9 - 22 June 2013 Guidelines for the Approval of Towing Vessels
These Guidelines are intended to lead to an approval by GL Noble Denton for entry into the Towing Vessel Approvability Scheme. They also provide guidance for the approval of towing vessels for a specific tow and bollard pull tests. They do not cover the towage of specific vessels or barges, guidance for which may be found in 0030/ND.
0027/ND Rev 10 - 22 June 2013 Guidelines for Marine Lifting & Lowering Operations
These guidelines have been developed for the design and approval of marine lifting operations, including subsea installations (but excluding pipelines and flowlines).
0028/ND Rev 5 - 22 June 2013 Guidelines for the Transportation and Installation of Steel Jackets
These guidelines have been developed for the design and approval of the transportation and installation of steel offshore jacket structures.
0029/ND Rev 0 - 22 June 2013 Guidelines for Submarine Pipeline Installation
This document sets out the Guidelines on which GL Noble Denton approval of pipeline installation by laying, pulling or towing, would be based.
0030/ND Rev 5 - 22 June 2013 Guidelines for Marine Transportations
These guidelines will be used by GL Noble Denton for approval of specialised marine transportations, including:
- Cargoes on ships or towed barges
- Towage of self-floating marine and oilfield equipment, civil engineering structures and ships
but are not normally intended to apply to 'standard' cargoes such as bulk liquids, bulk solids, refrigerated cargoes, vehicles or containers.
0031/ND Rev 1 - 22 June 2013 - Guidelines for Float-over Operations Installations / Removals
These guidelines have been developed for the float-over installation or removal of structures onto or from a host structure which may be:
- Offshore pre-installed structures, e.g. jackets and concrete units, or
- Offshore or inshore floating structures, e.g. TLPs, concrete units and semi-submersibles.
0032/ND Rev 1 - 22 June 2013 - Guidelines for Moorings
These guidelines will be used by GL Noble Denton for the approval of moorings, including:
- Offshore catenary or taut leg moorings of mobile offshore units (MOU)
- Offshore catenary or taut leg mooring of floating offshore installations (FOI)
- Inshore mooring of MOUs and FOIs, e.g. for stacking
- Temporary mooring of offshore installations in an afloat condition during construction, installation or decommissioning
- Quayside mooring of MOUs and FOIs, e.g. during maintenance or conversion
- Mooring of vessels during loadouts and installation operations.
0035/ND Rev 0 - 22 June 2013 - Guidelines for Offshore Wind Farm Infrastructure Installation
These guidelines have been developed for the installation of offshore wind farms of various types. They mainly refer to other GL Noble Denton guidelines developed for similar operations, but giving alternatives which may apply to offshore wind farm installations.
IV - Industrial Services, Part 6 - Offshore Technology Chapter 1-6 (GL Maritime Rules & Guidelines)
The maritime Rules & Guidelines of Germanischer Lloyd (GL) are developed through extensive research and development, the know-how and experience of our engineers and the close feedback of our worldwide network of surveyors. GL's Construction Rules and calculation methods represent the current state of scientific development.