ORS 659.825

Whenever an employer has agreed in writing with any employee to make payments to a health and welfare, dental, pension, vacation, apprenticeship and industry fund or any other such plan for the benefit of the employees, or has entered into a collective bargaining agreement providing for such payments, it shall be unlawful for such an employer willfully or with intent to defraud to fail to make the payments required by the terms of any such agreement.