Section 2 Class notations

2.1.1 Ships of Category 1A, which have chemical process plants designed to operate while the ship is navigating at sea, will be eligible to be classed `100A1 Chemical Process Factory', see also Pt 7, Ch 2, 1.4 Certification of process plant 1.4.5.

2.1.2 Ships of Category 1B, which have chemical plants designed for operation at sea while the ship is specially moored, anchored or otherwise linked to the shore, sea bed or other stationary vessel or structure, will be eligible to be classed `100A1 (T) moored (oil, ammonia, etc.) processing (tanker, barge, etc.) for service at . . .', see also Pt 7, Ch 2, 1.4 Certification of process plant 1.4.5.

2.1.3 Ships of Category 2, which have chemical plants installed and designed for operation while the ship is in harbour, will be eligible to be classed `100A(T) chemical process plant installed − for operation only when moored in harbour', see also Pt 7, Ch 2, 1.4 Certification of process plant 1.4.5.

2.1.4 Specialised ships of Category 3 which have chemical plants designed to operate only while the ship is fully supported on the sea bed, will be eligible to be classed `A chemical process plant pontoon/platform − to be operated only when grounded on prepared foundations at...', see also Pt 7, Ch 2, 1.4 Certification of process plant 1.4.5.

2.2.1 A special chemical cargoes notation may be assigned to ships where raw materials or products are stored or retained on board in bulk.

2.2.2 The Committee may append details of process, product storage, safety or other particulars to the notation as it considers necessary.

2.2.3 Ships of Category 1B or 2 which have process plants installed solely for the purposes of the physical liquefaction of impure feedstock gases at low temperatures and the storage of the purified liquefied gases (where the chemical treatment of the impurities is an incidental process) will be assigned additional notations to those stated in Pt 7, Ch 2, 2.1 Ship notations 2.1.2 or Pt 7, Ch 2, 2.1 Ship notations 2.1.3 such as `for liquefaction and storage of methane, etc. in independent tanks Type B, etc. − maximum pressure − minimum temperature'.

2.3.1 Where the process plant is operable only when the ship is specially moored, anchored or otherwise linked to the shore, sea bed or other stationary vessel, and the equipment and/or other linking arrangements and components have been approved by the Committee as suitable and sufficient for the intended service, an equipment character, T, will be assigned in addition, or as an alternative, to the equipment character 1, as appropriate.

2.3.2 For the purpose of the Rules, the word `linked' is to be taken to include spuds, retractable legs, floating or submerged pipelines connecting directly to the ship, ship to shore electrical connections, etc. which restrain the ship in its operating position, or which require such restraint to be applied and the failure of which could hazard the ship.