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DNV's VMO rules for Planning and Execution of Marine Operations include some important towing-related requirements and recommendations. The VMO rules were issued in 1996 and updated in 2000. DNV's experience with these rules is discussed and some possible future changes are indicated.

Wells have been dug or drilled for various purposes in all areas of the United States. If a well is not properly constructed or is depleted and no longer required, it can become a source of pollution, contamination, commingling and loss of groundwater. This is a major concern in old wells drilled before regulatory rules defined proper sealing and abandonment processes. The contents of this book cover those regulatory rules and general sealing practices in oil and gas wells; well abandonment preplanning; materials used in well abandonment; plug placement procedures; bonding considerations of the plug; locating abandoned wells; abandonment rules for oil and gas wells; and abandonment rules for water wells.

Wei Biao (Bill) Shi Principal Engineer ABS Corporate Technology examines the critical design issues posed by the increased size of ultra-large containerships

The role of Classification Societies and their surveyors in ensuring ship safety is critically examined: supporting discussion refers to the current survey requirements of Bureau Veritas and includes details of: the primary functions of Classification Societies; the establishment of Rules; the advantages of competition between Societies; the achievement of world-wide consistency in survey methods and in interpretation and application of Rules; procedures (agreed by IACS) for change of class from one Classification Society to another; the harmonised survey scheme; extended special surveys; and recent modifications in survey procedures. Appendixes based on the 1984 Rules include: an abstract from the Rules concerning new Tailshaft Survey Requirements for Extended Periods between Surveys and a flow chart for Survey of Propeller Shafts.

As an alternative to Liquefied Natural Gas (LNG) technology Compressed Natural Gas (CNG) has emerged as a useful strategy to economically monetise natural gas in short-haul trades or certain geographic locations. William J Sember Vice President of Energy Development at ABS has his say.

The naval architect is an invaluable member of the contract negotiation team. Technical expertise is required in many areas to ensure that a project will run smoothly and be performed satisfactorily including grounds for rejecting a ship liquidated damages (penalty clauses) and guarantees. Brief details of procedures and documentation that will help to avoid disputes are given.

A presentation approach is used to consider aspects of conductor design. Slides include: design issues; effect of top cement level; causes of failure; analysis methods; conductor design loads; conductor axial capacity; properties of clay (including remoulding) and sand; design guidelines.

Solas Chapter II-1 damage stability regulations set to enter force at the outset of 2009 in application to newbuilds whose keels are laid from 1 January will no doubt promise designers greater flexibility with regard to vessel subdivision deck heights and bulk-heads compared with the B/5 edict and other prescriptive requirements.