20 C.F.R. § 725.539 More than one reduction event.
Title 20 - Employees' Benefits
If a reduction for receipt of State or Federal benefits and a reduction on account of excess earnings are chargeable to the same month, the benefit for such month is first reduced (but not below zero) by the amount of the State or Federal benefits, and the remainder of the benefit for such month, if any, is then reduced (but not below zero) by the amount of excess earnings chargeable to such month.
Title 20: Employees' Benefits
PART 725—CLAIMS FOR BENEFITS UNDER PART C OF TITLE IV OF THE FEDERAL MINE SAFETY AND HEALTH ACT, AS AMENDED
Subpart H—Payment of Benefits
Increases and Reductions of Benefits
§ 725.539 More than one reduction event.

