Code of Massachusetts Regulations 257 CMR - BOARD OF REGISTRATION OF OPERATORS OF WASTEWATER TREATMENT FACILITIES
Code of Massachusetts Regulations: 257 CMR — Board of Registration of Operators of Wastewater Treatment Facilities
257 CMR governs the licensing, regulation, and professional conduct of operators of wastewater treatment facilities in Massachusetts. These regulations are issued by the Board of Registration of Operators of Wastewater Treatment Facilities, which operates under the Massachusetts Department of Environmental Protection (MassDEP) and the Division of Professional Licensure.
The purpose of 257 CMR is to ensure that wastewater treatment facilities are operated safely and efficiently, protecting public health, the environment, and water resources.
Purpose of 257 CMR
Licensing Standards
Establishes requirements for obtaining licenses to operate wastewater treatment facilities.
Defines classifications of licenses based on facility size, complexity, and treatment processes.
Professional Competency
Ensures operators have sufficient knowledge, skills, and experience to manage wastewater systems.
Requires adherence to operational and environmental standards to prevent pollution.
Continuing Education
Requires licensees to participate in continuing education programs to maintain and upgrade skills.
Ethical Conduct
Requires operators to act responsibly and maintain public trust.
Prohibits misconduct, misrepresentation, or negligent operation.
Disciplinary Authority
Grants the Board authority to investigate complaints, impose sanctions, suspend or revoke licenses, and enforce regulations.
License Classifications
257 CMR establishes several classes of licenses for wastewater operators:
Class 1 (Basic/Entry-Level Operator)
For smaller or less complex facilities.
Requires limited experience and knowledge.
Class 2
For medium complexity facilities.
Requires more experience and familiarity with treatment processes.
Class 3
For larger facilities with advanced treatment systems.
Requires significant experience and technical expertise.
Class 4 (Highest-Level Operator)
For major, complex facilities such as large municipal treatment plants.
Requires extensive knowledge, supervisory experience, and mastery of advanced wastewater treatment.
Key Sections of 257 CMR
1. Licensing Requirements
Minimum education and experience requirements per license class.
Examinations are required to demonstrate competency.
Trainee operators may work under supervision until fully licensed.
2. Continuing Education
Licensed operators must complete annual or periodic continuing education.
Focuses on:
New regulations and environmental standards
Advanced treatment technologies
Safety and emergency procedures
3. Professional Conduct
Operators must:
Operate facilities according to regulations
Avoid negligence or actions that could harm public health or the environment
Maintain accurate operational records
4. Disciplinary Procedures
The Board investigates complaints of:
Improper operation
Ethical violations
Misrepresentation or falsification of records
Sanctions may include:
License suspension or revocation
Fines or reprimands
Mandatory remedial education
Legal and Regulatory Principles
Public Protection
Operators play a critical role in protecting drinking water sources, rivers, and the environment.
Courts recognize that ensuring competent operators serves the public interest.
Due Process
Operators facing disciplinary action have rights to notice, hearings, and appeals under Massachusetts administrative law.
Substantial Evidence Standard
Board decisions must be supported by sufficient evidence of misconduct or incompetence.
Courts generally defer to the Board’s expertise unless its actions are arbitrary or unreasonable.
Summary
257 CMR ensures that wastewater treatment facility operators in Massachusetts:
Are properly trained and licensed for the facilities they operate
Maintain technical proficiency and ethical standards
Complete continuing education to stay updated
Are accountable through disciplinary mechanisms to protect public health and the environment

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