Final answer:
Accidental is not a requirement in a group life policy, while conversion and period of incontestable are essential clauses.
Explanation:
Accidental is the disposition that is not a requirement in a group life policy. In a group life policy, a conversion provision allows individuals to convert group coverage to an individual policy upon leaving the group without having to provide evidence of insurability. The period of incontestable clause specifies a period after which the insurer cannot contest the policy except in cases of fraud.
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