CFR > Title 29 - Labor > SUBTITLE B—Regulations Relating to Labor > CHAPTER IV—OFFICE OF LABOR-MANAGEMENT STANDARDS, DEPARTMENT OF LABOR (parts 401 to 471) > SUBCHAPTER A—LABOR-MANAGEMENT STANDARDS (parts 401 to 453) > PART 401—MEANING OF TERMS USED IN THIS SUBCHAPTER > 401.19—Assistant Secretary.