The 2012 edition of the DNV Rules for Ships and High Speed Light Craft is now ready and available online.

New and amended rules were formally approved by DNV’s Executive Committee on 21 November and are included in the January 2012 edition of the rules.

Below is a general overview of the changes made. For more detailed information, please view 'Related links' and/or contact your local DNV office.

Rules for Ships

1. New rules for:
   a. Battery Systems – also introducing the Battery Power class notation (Pt. 6 Ch. 28)
   b. Boiler Monitoring – introducing the BMON class notation (Pt. 7 Ch. 1).

2. Significant changes for:
   a. Structure rules – introducing rules for Steel Sandwich Panel Construction (Pt. 3 Ch. 1 & Ch. 2)
   b. Redundant Propulsion – adapting rules to market needs, as well as introducing new notations - RP+/RPS+ (Pt. 6 Ch. 2)
   c. Great Lake Bulk Carriers – introducing a customized survey regime (Pt. 7 Ch. 1).

3. Amendments for:
   a. Pressure Vessels (Pt. 4 Ch. 7)
   b. Stability and watertight integrity (Pt. 5 Ch. 1)
   c. Bow Loading and SPM (Pt. 5 Ch. 3)
   d. Transportation of low flashpoint liquids (Pt. 5 Ch. 7)
   e. Loading Computer Systems (Pt. 6 Ch. 9)
   f. Gas Fuelled Ships (Pt. 6 Ch. 13)
   g. NAUT-OSV (Pt. 6 Ch. 20).

Rules for High Speed Light Craft

1. New rules for:
   a. Battery Systems – also introducing the Battery Power class notation (Pt. 6 Ch. 28)

2. Amendments for:
   a. The use of class notations found in other rule books; e.g. Rules for Ships (Pt. 1 Ch. 1)
   b. Pressure Vessels (Pt. 4 Ch. 7)
   c. Service Craft (Pt. 5 Ch. 9 & Ch. 10)
   d. Gas Fuelled Ships (Pt. 6 Ch. 13).

Other rule books

1. Rules for Floating Docks – amended and made available in electronic format.

A few comments

• Regarding the rules for Steel Sandwich Panels: Verification of compliance with the Society’s rules shall be demonstrated by using the elaborated requirements stated in Classification Note No. 30.11.
• In addition to introducing the new Battery Power notation, the new rules for Battery Systems found in Pt. 6 Ch. 28 also cover new technology used in battery systems.
• The new BMON survey scheme has been introduced in order to limit the impact on the vessel’s commercial operations by allowing more flexibility in the way the survey/inspection is carried out.
• The customized survey regime for Great Lake Bulk Carriers allows the renewal survey to be postponed for 12 months.

Henning B. Karlsen
Service Director - Ship Classification

Date: 2012-01-24