Washington Workplace Posters: Required and Recommended are posters distributed by the Washington State Department of Labor & Industries, required to be displayed in all workplaces in Washington State. Required posters provide information on labor laws and regulations, such as the Minimum Wage, Workers’ Compensation, and Family Medical Leave Act. Recommended posters include information on other laws and regulations that are not mandated by the state, such as the Child Labor Law, Equal Employment Opportunity, and Employee Safety & Health. Different types of Washington Workplace Posters: Required and Recommended include: -Minimum Wage Poster -Workers’ Compensation Poster -Family Medical Leave Act Poster -Child Labor Law Poster -Equal Employment Opportunity Poster -Employee Safety & Health Poster.