Copper: Copper is a trace element that is essential for most animals, including humans. It is needed to absorb and utilize iron. The influence of copper upon health is due to the fact that it is part of enzymes, which are proteins that help biochemical reactions occur in all cells.
To facilitate the inspection, employers shall do all of the following: (1) maintain a copy of each employee's personnel records for a period of not less than three years after termination of employment, (2) make a current employee's personnel records available for inspection, and if requested by the employee or representative, provide a copy at the ...
DOL â The Department of Labor requires that you keep payroll records, collective bargaining agreements, and sales and purchase records for three years. Other employee records, including pay rate, hours worked, time cards, bonuses, withheld taxes, etc., should be kept for at least two years.