Final answer:
The Drug-Free Workplace Act is the legislation that outlines the requirements for federal contractors to maintain a drug-free workplace.The correct option is D.
Step-by-step explanation:
The requirements for federal contractors to maintain a drug-free workplace are outlined in the Drug-Free Workplace Act. This legislation was enacted to ensure that all federal contractors and grantees provide a drug-free work environment as a precondition of receiving a contract or grant from a federal agency. The Drug-Free Workplace Act requires companies with certain federal contracts to take specific steps to ensure a drug-free environment, such as creating a drug-free awareness program and ensuring that employees abide by the policy as a condition of employment.