Noise abatement procedures are detailed in the OP notes pages 6.4….  Make sure your notes have ICAO Procedure 1 and 2 (Procedure A and B are no more). However, this question is not quite covered by the notes – there is an extra paragraph in JAR OPS that states:

 

‘An operator must establish procedures for noise abatement iaw ICAO PANS OPS. Take-off climb procedures for noise abatement specified by an operator for any one aeroplane type should be the same for all aerodromes’.