Answer:
Depending on the state it is legal as long as it is kept within states regulation.
Explanation:
Pre-employment drug testing laws differ by state, but most states allow employers to test applicants for drugs so long as they comply with the state's regulations. In addition, some states require that employers provide written notice that drug testing will occur in job postings.
Answer:
Federation: a group of states with a central government but independence in internal affairs.
Union: the action or fact of joining or being joined, especially in a political context.
Explanation: