Wondering if anyone has a USCG link to their definition of “machinery spaces” in regards to bilge water management practices and Oil Record book entries. I’ve encountered a couple of different interpretations of what spaces onboard a ship must be treated as “machinery spaces”. I’ve always treated the regulations as meaning any space that has machinery with oil in it that can get into the bilge water in the space. All that water has to be treated as possibly oil contaminated and be processed thru an OWS to put it overboard. Some industrial vessels look at this differently and think the regs only mean engine rooms. Many spaces on industrial vessels have some machine or tank or piping system in them that can leak oil into the bilges and should be considered machinery spaces in terms of ORB application.
What type of vessel are you referring to?
Over 400 ton USCG inspected US flagged industrial vessel - non/tanker
ABS rule is determined by how much power is in that area
[QUOTE=JEFEDEMACHINA;161786]Wondering if anyone has a USCG link to their definition of “machinery spaces” in regards to bilge water management practices and Oil Record book entries. I’ve encountered a couple of different interpretations of what spaces onboard a ship must be treated as “machinery spaces”. I’ve always treated the regulations as meaning any space that has machinery with oil in it that can get into the bilge water in the space. All that water has to be treated as possibly oil contaminated and be processed thru an OWS to put it overboard. Some industrial vessels look at this differently and think the regs only mean engine rooms. Many spaces on industrial vessels have some machine or tank or piping system in them that can leak oil into the bilges and should be considered machinery spaces in terms of ORB application.[/QUOTE]Sounds like a hopper dredge?
ABS definition
[ol]
[li] Machinery Space is any space that contains propulsion machinery, boilers, oil fuel units, steamand internal combustion engines, generators and major electrical machinery, oil filling stations, airconditioning and ventilation machinery, refrigerating machinery, stabilizing machinery or othersimilar machinery, including the trunks to the space. Machinery space is to include “machineryspace of category A”, which, as defined in 4-7-1/11.15, is a space and trunks to that space whichcontains:[/li]
[ul]
[li] Internal combustion machinery used for main propulsion; or[/li]
[li] Internal combustion machinery used for purposes other than main propulsion where such[/li] machinery has in the aggregate a total power output of not less than 375 kW (500 hp); or
[li] Any oil-fired boiler (including similar oil-fired equipment such as inert gas generators,incinerators, waste disposal units, etc.) or oil fuel unit (see definition in 4-7-1/11.19). [/li]
[/ul]
[/ol]
Matches international convention definitions:
Should be listed on your IOPP what spaces and tanks you need to be concerned with.
[QUOTE=The Commodore;161961]Should be listed on your IOPP what spaces and tanks you need to be concerned with.[/QUOTE]
The IOPP (Form A Supplement) does not list spaces, only tanks.
The post by Jamesbrown is correct.