CAT.POL.H.420 Helicopter operations over a hostile environment located outside a congested area

(a)   Operations over a non-congested hostile environment without a safe forced landing capability with turbine-powered helicopters with an MOPSC of six or less shall only be conducted if the operator has been granted an approval by the CAA, following a safety risk assessment performed by the operator. [...]

(b)  To obtain and maintain such approval the operator shall:

(1)  only conduct these operations in the areas and under the conditions specified in the approval;

(2)  not conduct these operations under a HEMS approval;

(3)  substantiate that helicopter limitations, or other justifiable considerations, preclude the use of the appropriate performance criteria; and

(4)  be approved in accordance with CAT.POL.H.305(b).

(c)  Notwithstanding CAT.IDE.H.240, such operations may be conducted without supplemental oxygen equipment, provided the cabin altitude does not exceed 10000 ft for a period in excess of 30 minutes and never exceeds 13000 ft pressure altitude.