The purpose of this legislation, known as the Fair Wages for Farmworkers Act, is to ensure that H-2A workers, who are nonimmigrant agricultural workers, receive fair wages based on accurate state wage data. The bill aims to improve the calculation of the adverse effect wage rate, which is the minimum wage that must be paid to these workers to prevent adverse effects on local labor markets. Key provisions of the bill include a requirement for the Secretary of Labor to use state-level occupational employment and wage estimates from a specific survey conducted by the Bureau of Labor Statistics.