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Office Of Design And Engineering Standards News

16 Oct 2023

Hydrogen as Fuel: Possibilities, But…

Sea Change (Photo: All American Marine)

Hydrogen is everywhere. You know that from high school chemistry. And you also know it from Marine News’ almost daily updates about H powered vessel projects around the world.As a fuel that could potentially replace fossil fuels, H is in the spotlight. Perhaps the brightest spotlight, at least in the U.S., is within the Department of Energy’s “Energy Earthshots” initiative.R&D on H was the first such Earthshot announced last year. DOE wants the “Hydrogen Shot” program to “accelerate…

15 Apr 2015

Design Standards for US Barges Carrying LNG

The U.S. Coast Guard’s (USCG) Office of Design and Engineering Standards released CG-ENG Policy Letter 02-15 to provide interim guidance for the design standards for barges carrying liquefied natural gas in bulk. As interest in the use of LNG as a maritime fuel has increased, the USCG reports it has been approached by a number of vessel designers and operators requesting specificity regarding the design and operation of barges carrying LNG in bulk. The policy recommends design details for barges carrying LNG in bulk within the existing regulatory framework. This document consolidates guidance the Coast Guard has given to industry personnel who are designing LNG barges and to the Coast Guard personnel who are reviewing those designs. View Policy Letter No. 02-15 for full details.

14 Aug 2013

USCG Redesign PFD Type Code Classification

The U.S. Coast Guard announced Wednesday publication of a notice of proposed rulemaking to remove references to type codes in its regulations on the carriage and labeling of Coast Guard-approved personal flotation devices (PFDs). PFD type codes are unique to Coast Guard approval and are not well understood by the general public. The current PFD type code classification system is planned to be redesigned to focus on performance criteria rather than construction standards. A new easy-to-understand label concept is intended to help both professional mariners and recreational boaters select the best device for their intended uses and routes.

17 Jun 2009

Marine Safety Alert: Propulsion Loss, Fuel Switching

Ships switch fuel oil from residual fuels to distillate fuels in order to reduce emissions. The Coast Guard expects ships will switch fuel more frequently to comply with new emission reduction regulations. When switching fuel oil, some ships have experienced propulsion losses linked to procedural errors or fuel oil incompatibility. API developed a paper titled “Technical Considerations of Fuel Switching Practices” that discusses problems that lead to propulsion loss while switching fuel. It is available at http://marineinvestigations.us. This document may be useful to vessel owners, operators, and engineers interested in preventing fuel system failures and propulsion casualties while meeting current and future exhaust emission control requirements.