Oregon Preferred Worker Employment Purchase Agreement (OPERA) is a type of contract between an employee and employer in the state of Oregon. It is specifically designed to protect the interests of employees, while allowing employers to purchase employment services from qualified personnel. OPERA outlines the terms and conditions of the employment relationship, including job description, wages, hours, benefits, job security, and other important details. It also provides a framework for dispute resolution and enforcement of the agreement. OPERA comes in two main types: individual contracts and collective bargaining agreements. Individual contracts are between one employee and one employer, and outline specific terms and conditions of employment. Collective bargaining agreements are negotiated between labor unions and employers, and cover a wide range of topics such as wages, hours, benefits, job security, and more. Both types of OPERA are designed to ensure that employers and employees are treated fairly in the workplace.