20 C.F.R. § 410.642 Witnesses.
Title 20 - Employees' Benefits
Witnesses at the hearing shall testify under oath or affirmation or as directed by the Administrative Law Judge, unless they are excused by the Administrative Law Judge for cause. The Administrative Law Judge may examine the witnesses and shall allow the parties or their representatives to do so. If the Administrative Law Judge conducts the examination of a witness, he may allow the parties to suggest matters as to which they desire the witness to be questioned, and the Administrative Law Judge shall question the witness with respect to such matters if they are relevant and material to any issue pending for decision before him.
Title 20: Employees' Benefits
PART 410—FEDERAL COAL MINE HEALTH AND SAFETY ACT OF 1969, TITLE IV—BLACK LUNG BENEFITS (1969– )
Subpart F—Determinations of Disability, Other Determinations, Administrative Review, Finality of Decisions, and Representation of Parties
§ 410.642 Witnesses.
