ARO.RAMP.106 Alcohol testing
(a) The CAA’s programme of ramp inspections shall include arrangements for alcohol testing on flight crew members and cabin crew members, based on random selection or on reasonable suspicion that the individual is under the influence or in excess of the prescribed limit of alcohol.
(b) The procedures for alcohol testing shall meet recognised quality standards that ensure accurate testing results and these procedures and quality standards shall be detailed in guidance published by the CAA.
(c) A flight crew member or cabin crew member:
(i) who refuses to cooperate with alcohol testing; or
(ii) whose alcohol test produces a reading in excess of the prescribed limit of alcohol, shall not be allowed to continue their duties on the flight in question.
(d) When alcohol test data is included in the EASA centralised database in accordance with ARO.RAMP.145, the CAA shall ensure that any personal data of the crew member is excluded.
(e) ”prescribed limit of alcohol” means:
(i) in the case of breath, 9 microgrammes of alcohol in 100 millilitres,
(ii) in the case of blood, 20 milligrammes of alcohol in 100 millilitres, and
(iii) in the case of urine, 27 milligrammes of alcohol in 100 millilitres.