Willing and capable of providing informed consent 
Has an indication for implantation of a single or dual chamber ICD or CRT-D system in their respective geography 
Subjects planned to be implanted with the RELIANCE 4-FRONT Passive Fixation Lead 
Willing and capable of participating in all testing/ visits associated with this clinical study at an approved clinical study center and at the intervals defined by this protocol 
Age 18 or above, or of legal age to give informed consent specific to state and national law 

NCT01856491_inc_T2
Observation
indication
NCT01856491_inc_T3
Procedure
chamber ICD implantation of a single
NCT01856491_inc_T4
Procedure
dual chamber ICD implantation of a
NCT01856491_inc_T5
Procedure
CRT-D system implantation of a
NCT01856491_inc_T6
Scope
implantation of a single or dual chamber ICD or CRT-D system
NCT01856491_inc_T7
Observation
planned
NCT01856491_inc_T8
Procedure
implanted with the RELIANCE 4-FRONT Passive Fixation Lead
NCT01856491_inc_T9
Device
RELIANCE 4-FRONT Passive Fixation Lead
NCT01856491_inc_T11
Person
Age
NCT01856491_inc_T12
Value
18 or above
NCT01856491_inc_T13
Value
of legal age
NCT01856491_inc_T14
Scope
18 or above, or of legal age