From
LASORS, Section F:
An applicant for a class rating for a single-pilot MEP (Land) aeroplane rating must produce evidence of having completed a minimum of 70 hours as pilot-in-command of aeroplanes
In other words, you do not need to have 70 hours PIC in order to start training, but having completed the training, you won't be able to apply for the rating until your PIC time has reached 70 hours.
FFF
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