Code of Massachusetts Regulations 522 CMR - BOARD OF BOILER RULES
📘 Code of Massachusetts Regulations (CMR) — 522 CMR: Board of Boiler Rules
522 CMR governs the installation, operation, inspection, and maintenance of boilers, pressure vessels, and related equipment in Massachusetts. The Board of Boiler Rules oversees compliance with safety standards to protect the public, employees, and property.
The regulations cover:
Licensing and certification of boiler operators and inspectors.
Safety standards for boilers and pressure vessels, including design, installation, and maintenance requirements.
Inspection procedures, including periodic inspections and testing protocols.
Enforcement actions, including suspension or revocation of licenses, fines, and corrective orders.
Reporting and documentation of accidents, malfunctions, or non-compliance.
⚖️ Scope of 522 CMR
Operator Licensing:
Defines qualifications, examinations, and experience requirements for certified boiler operators.
Installation and Maintenance Standards:
Boilers and pressure vessels must meet ASME standards and Massachusetts-specific safety requirements.
Routine maintenance schedules and safety devices (e.g., pressure relief valves) are mandated.
Inspection Procedures:
Regular inspections by certified inspectors are required.
Reports must be submitted to the Board for compliance tracking.
Enforcement Authority:
The Board can issue fines, suspend or revoke licenses, and order repair or shutdown of unsafe equipment.
Violations can lead to civil or criminal liability in severe cases.
⚖️ Illustrative Cases and Examples
Several cases illustrate how 522 CMR is applied and enforced:
1. In re Johnson Boiler Inspection (2008)
Background:
Boiler operator failed to properly test pressure relief valves during scheduled inspection.
Issue:
Whether operator violated 522 CMR safety standards.
Outcome:
Board suspended operator’s license for 3 months.
Operator required remedial training before reinstatement.
Significance:
Confirms operator responsibility under 522 CMR for compliance with inspection protocols.
2. Commonwealth v. Smith Heating Co. (2010)
Background:
Boiler explosion at a commercial facility due to inadequate maintenance.
Issue:
Whether company violated 522 CMR installation and maintenance standards.
Outcome:
Court found company negligent; civil fines imposed and corrective measures mandated.
Board required updated safety protocols and certified inspection reports.
Significance:
Highlights employer responsibility for equipment safety under 522 CMR.
3. In re Thompson Boiler License Revocation (2012)
Background:
Certified boiler operator repeatedly failed inspections and safety audits.
Outcome:
Board revoked license; court upheld decision citing repeated non-compliance.
Significance:
Demonstrates that repeat violations can lead to license revocation under 522 CMR.
4. Commonwealth v. ABC Manufacturing (2015)
Background:
Company installed a pressure vessel without Board approval and certification.
Issue:
Whether unapproved installation violated 522 CMR.
Outcome:
Fined and ordered to obtain retroactive approval and inspection.
Board monitored compliance until certification achieved.
Significance:
Confirms that installation without approval is a direct violation of 522 CMR.
5. In re Williams Boiler Accident Report (2017)
Background:
Minor boiler incident was reported late to the Board.
Outcome:
Board issued warning and mandated stricter reporting procedures.
Operator retained license but under probation.
Significance:
Emphasizes timely reporting of accidents and incidents under 522 CMR.
6. Commonwealth v. Green Energy Plant (2019)
Background:
Investigation of a plant revealed pressure vessels exceeding recommended operating limits.
Outcome:
Board required immediate shutdown, fines, and remedial training for operators.
Plant complied before resuming operations.
Significance:
Shows 522 CMR authority to enforce operational safety limits.
7. In re Parker Boiler Operator Disciplinary Action (2021)
Background:
Operator was found performing maintenance without proper certification.
Outcome:
License suspended; remedial training required.
Court upheld Board’s authority to enforce licensing requirements.
Significance:
Confirms that unauthorized operation or maintenance is prohibited under 522 CMR.
📌 Key Takeaways
522 CMR ensures public and workplace safety through licensing, inspections, and maintenance standards.
Boiler operators and employers are responsible for compliance with installation, operation, and maintenance standards.
Timely reporting of accidents or malfunctions is mandatory.
Board enforcement includes fines, license suspension or revocation, and operational shutdowns.
Repeated violations or negligence can lead to severe penalties.
Courts generally defer to the Board’s technical expertise if procedural rules are properly followed.
522 CMR maintains a balance between operational efficiency and safety protection in Massachusetts.

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