20 C.F.R. § 726.206 Terms of policies.
Title 20 - Employees' Benefits
A policy or contract of insurance shall be issued for the term of 1 year from the date that it becomes effective, but if such insurance be not needed except for a particular contract or operation, the term of the policy may be limited to the period of such contract or operation.
Title 20: Employees' Benefits
PART 726—BLACK LUNG BENEFITS; REQUIREMENTS FOR COAL MINE OPERATOR'S INSURANCE
Subpart C—Insurance Contracts
§ 726.206 Terms of policies.

