code_of_practice_V3_2019

“Designated Person” identified in the IMO ISM Code as a person ashore who should be designated by the company
who has direct access to the highest level of management.
“Emergency Stop” means the ability to reduce propulsion to a safe state in a timely manner. In this context:
n “a safe state” means a level at which it is not likely to cause damage either directly or indirectly. Note that some
MASS (e.g. wave propelled) may not have any means of cutting propulsion power to zero; but in a harbour or
sheltered waters the wave propulsive power may reasonably be expected to be a safely low level;
n “in a timely manner” means within a time that is short enough to ensure that the risk from uncontrolled propulsive
power can be contained before it is likely to cause damage. In open ocean conditions this may be relaxed, whereas
in a docking situation the propulsion may need to be cut more quickly, within seconds or less;
n “Full Shut Down” means the ability to turn off all systems as required on the MASS remotely, for example in the
case of a fire.
"Length" and "(L)" in relation to a ship means the greater of the following distances:
n 96% of the total length on the waterline at 85% of the least moulded depth measured from the top of the keel, OR
the length from the fore-side of the stem to the axis of the rudder stock on that waterline.
n Where the stem contour is concave above the waterline at 85% of the least moulded depth, both the forward terminal
of the total length and the fore-side of the stem respectively shall be taken at the vertical projection to that waterline
of the aftermost point of the stem contour (above that waterline). In ships designed with a rake of keel the waterline
on which this length is measured shall be parallel to the designed waterline;
“Levels of control”. A number of systems for categorising the level of control applicable to MASS have been developed,
notably by the European Defence Agency’s Safety and Regulations for European Unmanned Maritime Systems
(SARUMS) group.
Table 1-4: Level of Control Definitions
Level Name Description
0 Manned MASS is controlled by operators aboard
1 Operated
2 Directed
3 Delegated
4 Monitored
5 Autonomous
Under Operated control all cognitive functionality is within the human operator. The
operator has direct contact with the MASS over e.g., continuous radio (R/C) and/or cable
(e.g., tethered UUVs and ROVs). The operator makes all decisions, directs and controls
all vehicle and mission functions.
Under Directed control some degree of reasoning and ability to respond is implemented
into the MASS. It may sense the environment, report its state and suggest one or several
actions. It may also suggest possible actions to the operator, such as e.g. prompting the
operator for information or decisions. However, the authority to make decisions is with the
operator. The MASS will act only if commanded and/or permitted to do so.
The MASS is now authorised to execute some functions. It may sense environment, report
its state and define actions and report its intention. The operator has the option to object
to (veto) intentions declared by the MASS during a certain time, after which the MASS
will act. The initiative emanates from the MASS and decision-making is shared between
the operator and the MASS.
The MASS will sense environment and report its state. The MASS defines actions,
decides, acts and reports its action. The operator may monitor the events.
The MASS will sense environment, define possible actions, decide and act. The
Unmanned Vessel is afforded a maximum degree of independence and self-determination
within the context of the system capabilities and limitations. Autonomous functions are
invoked by the on-board systems at occasions decided by the same, without notifying any
external units or operators.
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MASS UK Industry Conduct Principles and Code of Practice Version 3