For all ships that are allowed to sail with an Unattended Machinery Spaces (UMS), regardless of length, propulsion power or assigning organization, evidence must be available on board that the ships' UMS-provisions are checked and tested, every 4 months by the ships' crew to ensure that these provisions are functioning in a reliable manner.
In cases where a shipowner opts for UMS-notation, the ship will in principle be assigned with formal UMS-notation by the Recognised Organisation (RO), based on their requirements.
Applicability for ItoRO no.17 UMS requirements
For smaller ships it is not always possible to comply with the extensive requirements for UMS-notation of the RO. Continuous manning of the Engine Room is however impossible while meeting acceptable working conditions at the same time. Therefor the UMS requirements as per paragraph 2, 3, 4 and 5 may be used, but this only for ships with a ITC'69 length between 12 and 24 meter and with a propulsion power <750kW.
Distinction by certification date
Certification date before 1st of July 2010
For the ships certified by the Netherlands Shipping Inspectorate (NSI) for UMS before 1st of July 2010 a dedicated checklist is provided on board, based on the specific (older) NSI UMS-guidelines that were applied for that specific ship (see: Overview ships with Unattended Machinery Spaces – notation by the Netherlands Shipping Inspectorate, as amended). See the legend of the above mentioned overview for detailed information concerning the older NSI UMS-guidelines.
For ships that fall into this distinction, the NSI has authorized and requires the Recognized Organization's (RO) to perform the periodical surveys for compliance with the (older) NSI UMS- guidelines.
Certification date from 1st of July 2010
Until 1st July 2010, the application of UMS-requirements as per the (older) NSI UMS-guidelines was in place and remains valid.
From 1st July 2010, ships' UMS-notation, must be based either on:
the compliance with the UMS-requirements of concerned Recognized Organization resulting in the assignment of formal UMS notation by subject RO; or
the compliance with the UMS-requirements in this Instruction1.
For ships that fall into this distinction, the NSI has authorized and requires the RO to perform the initial and periodical surveys for compliance with the UMS-requirements.
Checking UMS-requirements as per this Instruction
The UMS-requirements as per this Instruction (chapter 2 - 5) shall be checked and confirmed in good working condition by the RO during the initial and periodical surveys in the same manner and with the same periodicity as required for maintaining the UMS-notation by the RO. To that effect a memo shall be added to the ships' status in the RO's survey and certification system. The memo shall state that the ship has been initially surveyed and accepted under the applicable UMS-requirements. Furthermore the memo shall state that the ships' UMS-provisions are surveyed at the required periodical intervals to ensure that the UMS-provisions are functioning in accordance with the applicable requirements.
Reporting to NSI
Ships which are surveyed and certified under the requirements of this Instruction that are not yet listed in Overview ships with Unattended Machinery Spaces – notation by the Netherlands Shipping Inspectorate, as amended shall be reported back to the NSI. The NSI will arrange that these ships are included in the overview.
Notifying discrepancies to the NSI
Existing ships without documented proof of compliance with UMS-requirements2 while at the same time provided with a Minimum Safe Manning Document stating that the ship has UMS shall be reported to the NSI immediately in order to check ships' status in relation to UMS and for further instruction(s).
What to do if application of ItoRO no. 17 is not possible
Where the RO considers the application of the UMS-requirements as per this Instruction or the formal UMS-notation/requirements of the classiﬁcation society (Class Rules regarding UMS) not possible, the RO may submit to the NSI a customized, well founded, proposal for compliance with the requirements as far as reasonably practicable.