Contribute to pre-mooring procedures in jetty operations

Business Sectors (Suites): Jetty Operations
Developed by: Cogent
Approved on: 30 Mar 2020


This standard covers the competences you need to contribute to pre-mooring procedures in jetty operations in accordance with approved procedures and practices.

You will be required to demonstrate that you can:
1 Contribute to pre-mooring operations

During this work you must take account of the relevant operational requirements and safe working practices AS THEY APPLY TO YOU.

The activity is likely to be undertaken by someone in petro-chemical work setting, including individuals working in refineries, chemical plants and tank storage. 

Performance criteria

You must be able to:

P1 obtain relevant information
P2 analyse information and ensure that the ship is positioned within prescribed parameters
P3 ensure that cargo transfer equipment and connections can be made when ship is correctly positioned
P4 select the correct equipment for the mooring scheme
P5 assess the condition of all equipment to be used in the mooring scheme at regular intervals
P6 inspect mooring equipment according to standard operating procedures
P7 identify any defective or sub standard equipment
P8 complete pre-use safety checks before using mooring equipment
P9 operate mooring equipment correctly according to agreed mooring scheme
P10 ensure ship's mooring equipment operates within agreed parameters
P11 monitor ship's mooring equipment during mooring operation
P12 take the appropriate action if the ship moves out of prescribed parameters
P13 deal promptly and effectively with problems that are your responsibility, and report those that you cannot solve and/or are not your responsibility to the relevant person
P14 communicate all relevant information to the appropriate people
P15 work safely in accordance with operational and environmental requirements

Knowledge and Understanding

You need to know and understand:

​K1 the relevant information to obtain
K2 why it is important to obtain the correct information
K3 the units of measurement and terminology to use
K4 the methods to use to analyse dimensions of ship
K5 the types of connecting equipment that should be used
K6 the appropriate action to take when the ship is out of prescribed parameters
K7 how to identify and select the correct mooring equipment
K8 the factors that can affect the use of the mooring equipment
K9 how to assess the condition of the mooring equipment
K10 why it is important to assess the condition of the mooring equipment
K11 how to identify defective and sub standard equipment
K12 how to complete pre-use safety checks
K13 how to recognise that the ship's mooring equipment is correctly deployed
K14 how to monitor ship's mooring equipment.
K15 how to ensure that mooring equipment is operated within agreed parameters
K16 the effects that external factors have on mooring
K17 the principles of safe mooring
K18 how to interpret information in mooring plans and schemes
K19 how to ensure that the mooring pattern meets the prescribed mooring plan
K20 the limitations of mooring patterns


1 Obtain relevant information from vessel to include all of the following:
1.1 vessel freeboard
1.2 bow to centre manifold
1.3 manifold arrangements

2 Select the correct equipment for the mooring scheme taking account of all of the following:
2.1 relevant external factors
2.2 relevant environmental factors
2.3 factors affecting the restraint capacity of moorings
2.4 springs, head, stern and breast lines

3 Inspect and assess the condition of the mooring equipment at regular intervals according to prescribed procedures

4 Recognise that vessel's mooring equipment is correctly applied according to agreed mooring scheme, taking account of all of the following factors:
4.1 tensions
4.2 winch forces
4.3 external factors to include, tide, weather, waves, passing vessels
4.4 brake holding power

5 Meet the prescribed mooring plan, following principles of safe mooring, taking into account all of the following factors:
5.1 angle of rope above horizontal
5.2 angle of rope from fore and aft axis of ship
5.3 length of rope
5.4 unacceptable use of mixed moorings

Scope Performance

Scope Knowledge





Links To Other NOS

External Links

Version Number


Indicative Review Date

30 Mar 2026





Originating Organisation


Original URN


Relevant Occupations

Engineering, Engineering and Manufacturing Technologies, Engineering Professionals, Professional Occupations

SOC Code



contribute, pre-mooring, jetty, operations