General (1 June 2016) The requirements for conditions of Classification for the entire units and offshore structures are contained in the ABS Rules for Conditions of Classification ?C Offshore Units and Structures (Part 1). Additional requirements specific to pre-laid stationkeeping systems are contained in this Guide. The provisions of this Guide apply to mobile offshore units operating with pre-laid stationkeeping systems. ? Section 2 of this Guide provides the technical requirements for the optional symbol: (P-PL) (Position (pre-laid) mooring systems) for mobile offshore units. ? Section 3 of this Guide provides the survey requirements for the optional symbols: (P-PL) (Position (pre-laid) mooring systems) and (M-PL) (Position (pre-laid) mooring equipment) for mobile offshore units. ? Section 4 of this Guide provides the technical requirements for the optional notations: TAM-PL (Automatic position control system) and TAM-PL (Manual) (Manual position control system) for mobile offshore units. ? Section 5 of this Guide provide the survey requirements for the optional notations: TAM-PL (Automatic position control system) and TAM-PL (Manual) (Manual position control system) for mobile offshore units. At the request of the Owners@ the pre-laid stationkeeping systems may be verified for compliance with the provisions of Sections 2 through 5 as applicable@ with the appropriate class symbol or notation assigned.