Attachment J-1F - WCC PPD-070-1 - ABS Classification Guide A00002.pdf

70Z02321RPRT00300 Amendment 00002

USCG WATERWAYS COMMERCE CUTTER (WCC)

ATTACHMENT J-1F: VESSEL CLASSIFICATION AND

CERTIFICATION GUIDE

PPD-070-1

09 July 2021

Prepared by:

COMMANDANT (CG-9326)

UNITED STATES COAST GUARD STOP 7800

2703 MARTIN LUTHER KING JR AVE SE

WASHINGTON DC 20593-7800

Distribution Statement A: Approved for public release; distribution is unlimited.

Waterways Commerce Cutter (WCC) 70Z02321RPRT00300 ABS Classing Guide

09 JUL 2021 Page 2 of 3 Amendment 00002

The WCC Vessel Classification and Certification Guide

The WCC Vessel Classification and Certification Guide, or “Classing Guide,” is to assist the Shipbuilder(s) with understanding the design and construction standards that comprise the basis for the American Bureau of Shipping (ABS) to class the WCC. In accordance with the WCC System Specification, the cutter shall be classed in accordance with the ABS Rules for Building and Classing Steel Vessels under 90 meters (m) (295 feet or ft.) in length, 2019, hereafter referred to as the “ABS Rules,” with the following notations:

• ✠ A1

• Government Service – 50 Miles from Shore and 6.2 ft Maximum Significant Wave

Height

• ✠ AMS

• R2

• CRC

As the operational environment and mission requirements of the WCC differ from a traditional ocean going vessel classed by the ABS Rules and the USCG, and ABS have determined that various ABS Rule requirements are excessive in certain areas. This Classing Guide documents the specific areas in which deviations from the ABS Rules have been determined to be appropriate.

This Classing Guide does not levy additional requirements beyond the WCC System Specification or create additional work items.

The Order of Precedence shall be in accordance with WCC Specification Section 042.

Applicability of Part 5 of the ABS Rules

Unless otherwise noted, the WCCs will not operate as any of the vessel types listed in Part 5 of the ABS Rules, thus none of the requirements in Part 5 applies to the WCCs.

WCC Structural Design

It is anticipated that in accordance with ABS Rules 3-2-1/1, the Beam (B) to Depth (D) ratio (B/D) will be greater than 2, and will require special consideration and acceptance from ABS.

For the value of h, in ABS Rules 3-2-2/3.3, a value of D + 2.5 ft may be used, where D is as defined in ABS Rules.

For the value of h, in ABS Rules 3-2-2/5.1, a value D + 2.5 ft may be used, where D is as defined in ABS Rules.

For the value of t with regard to all tiers for side bulkhead thickness in ABS Rules 3-2-9/3.5, the value of 0.20 inch may be used for OS steel.

WCC Auxiliary Systems

Waterways Commerce Cutter (WCC) 70Z02321RPRT00300 ABS Classing Guide

09 JUL 2021 Page 3 of 3 Amendment 00002

As the WCC operates almost entirely within areas in which it cannot discharge overboard and is required to contain any oily water onboard the vessel, the Oily Water Filtering or Separating Equipment, required by ABS Rules 4-4-3/5.15, shall not be installed.

The WCC requirements for Anchors and Anchor Handling systems for the WCC are located in the WCC System Specification section 580 and 581. The anchor shall be sized in accordance with 5-12-A1.

The WCC does not have requirements for traditional towing; the towing details required by ABS Rules 3-5-1 do not apply.