Fair trade laws were enacted on a state-by-state basis, but they were deemed unlawful by the FTC and in a large number of actions in various Federal Courts in the early 1980s.
So, manufacturers cannot dictate to resellers at what price they can sell products to customers (with certain exceptions), but what they do often require resellers to comply with minimum advertised pricing (MAP), which has been deemed legal in most (if not every) state.
So, manufacturers cannot dictate to resellers at what price they can sell products to customers (with certain exceptions), but what they do often require resellers to comply with minimum advertised pricing (MAP), which has been deemed legal in most (if not every) state.