Must provide satisfactory information on previous employment as a wastewater operator or operator-in-training. Must satisfy experience requirements (ranging from 1-8 years) for the grade of license being sought. Education can be substituted for a portion of the experience requirements. Exam required. Continuing education required. Fees required. Commonwealth of Massachusetts Board of Certification of Operators of Wastewater Treatment Facilities 1 Winter Street Boston, MA 02108-4747 (617) 292-5650
