The practice of chiropractic in Massachusetts is legally defined as "the science of locating and removing interference with the transmission or expression of nerve force in the human body, by the correction of misalignments or subluxations of the bony articulation and adjacent structures, more especially those of the vertebral column and pelvis, for the purpose of restoring and maintaining health" 1. This scope is codified in the Code of Massachusetts Regulations (CMR), specifically 233 CMR, and is enforced by the Massachusetts Board of Registration of Chiropractors. The precise delineation of this scope is foundational for public health, serving to protect patients by ensuring practitioners operate within a defined area of competency. It also establishes clear professional standards that distinguish chiropractic from other healthcare disciplines, informs third-party payers about covered services, and provides a legal benchmark for measuring professional conduct and resolving disputes.
Central to the Massachusetts scope is the focus on the vertebral subluxation. This concept, which has been a cornerstone of chiropractic philosophy since the profession's founding by D. D. Palmer in the late 19th century, posits that biomechanical vertebral lesions can adversely affect neurological function. Massachusetts law operationalizes this principle by stating that a chiropractic analysis identifying a "chiropractic subluxation/segmental and somatic dysfunction" can serve as the legitimate basis for providing care, even when a patient presents without subjective symptoms or complaints 2. This provision allows for a wellness or preventative model of care, where the objective is to correct underlying biomechanical issues before they manifest as overt health problems.
The scope of practice is not limited solely to the chiropractic adjustment. State regulations explicitly authorize chiropractors to employ a variety of supportive procedures and therapies intended to complement the adjustment by managing pain, reducing inflammation, and facilitating rehabilitation. As defined in 233 CMR 4.02, these adjunctive therapies include the application of braces and supports, mechanical traction, thermal modalities like heat and cryotherapy, electrotherapy, and therapeutic ultrasound 3. Furthermore, the scope extends to offering dietary and nutritional advice, empowering chiropractors to address patient health through lifestyle and nutritional counseling as part of a holistic treatment plan 3.
To ensure these services are delivered safely and ethically, the Board of Registration of Chiropractors enforces stringent professional standards. A key requirement for accountability is the mandate for each practitioner to create and maintain a separate, adequate, and accurate written clinical record for every patient 4. Marketing and public communication are also regulated; 233 CMR 4.13 permits advertising but strictly forbids any content that is deceptive, misleading, or false 5. The Board possesses robust disciplinary authority, with grounds for action including convictions for certain criminal offenses, fraudulent billing, professional negligence, or incompetence 6.7 Regulations also specifically target the "overutilization of practice," defined as providing excessive treatments or generating excessive bills, which can subject a chiropractor to disciplinary review and sanctions, thereby protecting patients from unnecessary care and financial exploitation 8.
Governing authority and legal framework in Massachusetts
The practice of chiropractic in Massachusetts is regulated by a specific state-level governing body, the Massachusetts Board of Registration of Chiropractors. Established under the statutory authority of the Massachusetts General Laws (M.G.L.), specifically Chapter 112, Sections 89 through 97, the Board is the principal entity responsible for licensing, regulating, and overseeing the profession within the Commonwealth. Its primary mandate is to protect public health, safety, and welfare by ensuring that chiropractors adhere to established standards of professional competence and ethical conduct. The Board is composed of seven members appointed by the governor: five of whom are licensed chiropractors who have been engaged in practice for at least five years, one is a registered physician, and one is a representative of the public. This composition is designed to provide a balance of professional expertise and public interest in its governance and decision-making processes.
The legal foundation for the Board's oversight is the statutory definition of the "practice of chiropractic" itself, which is articulated in state law. This definition centers on the "science of locating and removing interference with the transmission or expression of nerve force in the human body" through the correction of subluxations, particularly in the vertebral column and pelvis, to restore health 1. This legal language reflects the core tenets that have defined the profession since its inception, principles first systemically described by early pioneers like D. D. Palmer. The establishment of state-specific legal frameworks, as seen in Massachusetts, was part of a broader historical movement across the United States where the chiropractic profession sought and achieved legal recognition and regulation, a process documented in states like Texas and Wisconsin 9, 10.
To execute its statutory duties, the Board of Registration of Chiropractors promulgates a detailed set of rules and regulations, which are codified in Title 233 of the Code of Massachusetts Regulations (CMR). These regulations provide the specific, enforceable standards that govern the day-to-day practice of chiropractic. For example, 233 CMR 4.01(4) clarifies that a diagnosis of chiropractic subluxation or dysfunction can justify the initiation of care, even if the patient presents with no subjective complaints 2. The regulations also define the scope of adjunctive care, listing authorized supportive procedures and therapies such as the use of traction, thermal and electrical modalities, and nutritional advice, which may be used in addition to the primary chiropractic adjustment 3.
A significant function of the Board is its authority to enforce these regulations through disciplinary action. The Board is empowered to investigate complaints against its licensees and, if a violation is substantiated, to impose sanctions ranging from reprimand to license suspension or revocation. The grounds for such disciplinary action are explicitly outlined in 233 CMR 4.06 and include a range of professional and ethical failures, such as practicing with gross incompetence or negligence, engaging in fraudulent billing, or being convicted of a criminal offense that relates to the practice of the profession 6. The Board’s enforcement authority also extends to the business aspects of chiropractic practice; it is authorized to discipline chiropractors for the "overutilization of practice," which is defined as providing or billing for excessive or unnecessary treatments, thereby protecting patients from both clinical and financial harm 8.
The core of chiropractic practice: analysis and adjustment
The legal framework in Massachusetts establishes a distinct and specific core for the chiropractic profession. State law defines the "practice of chiropractic" as "the science of locating and removing interference with the transmission or expression of nerve force in the human body, by the correction of misalignments or subluxations of the bony articulation and adjacent structures" 1. This definition, focusing on the vertebral column and pelvis, legally codifies the central theoretical construct of chiropractic: the vertebral subluxation. This concept, originating with the profession's founder D. D. Palmer, posits that small misalignments of spinal vertebrae can compromise nervous system function and, consequently, overall health. The stated purpose of this practice is explicitly for "restoring and maintaining health," which provides a legal basis for both corrective and wellness-oriented care 1.
Building on this statutory foundation, the Massachusetts Board of Registration of Chiropractors provides regulatory clarity on the application of this core principle. The process begins with a "chiropractic analysis," a clinical evaluation intended to locate the subluxations described in state law. The findings of this analysis are paramount. According to the Code of Massachusetts Regulations, specifically 233 CMR 4.01(4), a chiropractic analysis that identifies the existence of a "chiropractic subluxation/segmental and somatic dysfunction" may serve as the basis for initiating chiropractic care 2. This regulation is significant because it explicitly permits care "even in the absence of a subjective complaint" from the patient 2. This provision legally authorizes a proactive or preventative model of care, where the chiropractor's objective clinical findings are sufficient justification to render treatment aimed at maintaining health and optimal function, not merely responding to pain or other symptoms.
The primary intervention following the analysis is the chiropractic adjustment, a procedure designed to correct the identified subluxation. This involves the application of a controlled force to the specific joint, a manual skill refined through extensive training in various named techniques. While the adjustment is the central therapeutic procedure, the entire clinical process is subject to strict documentation standards. The Board mandates that a chiropractor must "establish and maintain a separate, adequate, and accurate written clinical record for each patient" 4. This record must document the findings of the analysis, the diagnosis of subluxation, the treatment plan, the adjustments rendered, and the patient's progress. This requirement ensures that the clinical justification for care, particularly care initiated in the absence of symptoms, is clearly recorded and defensible, linking the legal definition of practice directly to the day-to-day clinical encounter 4.
Authorized supportive procedures and therapies
In Massachusetts, the legal scope of chiropractic practice extends beyond the primary act of spinal adjustment to include a specific range of adjunctive treatments. These are officially termed "supportive procedures and therapies" and are authorized under the Code of Massachusetts Regulations, 233 CMR, § 4.02 3. The regulation explicitly states that these therapies are to be used in addition to, not as a replacement for, the chiropractic adjustment, which is legally defined as the core of the practice 1. The use of these procedures must be clinically justified and documented in the patient's record, consistent with the Board's standards for patient care 4.
The authorized supportive procedures encompass several categories of physiotherapy modalities. These include the use of braces and other mechanical supports to stabilize injured areas, limit detrimental motion during healing, or provide proprioceptive feedback to the patient. Chiropractors are also permitted to apply traction, either manually or with mechanical devices, to the cervical or lumbar spine to decompress intervertebral discs and associated nerve roots 3. The specific techniques and clinical indications for integrating such modalities with adjustive procedures have been part of chiropractic training and literature for decades, as codified in works like F. P. DeGiacomo's Textbook of chiropractic technique.
Energy-based modalities are also clearly delineated in the regulations. Permitted treatments include thermal modalities, which involves the therapeutic application of heat (thermotherapy) to increase blood flow and relax muscles, or cold (cryotherapy) to reduce acute inflammation and pain 3. The use of therapeutic ultrasound, a modality that uses high-frequency sound waves to produce thermal and non-thermal effects in deep tissue to promote healing, is also within the scope. Furthermore, chiropractors may utilize various electrical modalities, such as Transcutaneous Electrical Nerve Stimulation (TENS) for pain management or Electrical Muscle Stimulation (EMS) for muscle re-education and spasm reduction 3. The inclusion of these tools reflects a significant evolution from the exclusive focus on the manual adjustment that characterized the profession's earliest days under D. D. Palmer.
Finally, the scope of practice in Massachusetts explicitly authorizes chiropractors to provide "dietary and nutritional advice" 3. This allows practitioners to counsel patients on lifestyle and dietary choices that support musculoskeletal health, manage inflammation, and promote overall wellness in conjunction with their chiropractic care. This advisory role is intended to be supportive of the primary treatment and must not be excessive or constitute overutilization of practice, which could subject a chiropractor to disciplinary action by the Board 8.
Diagnostic authority, imaging, and examination protocols
The diagnostic authority of chiropractors in Massachusetts is fundamentally linked to the legal definition of the profession within the Commonwealth. The practice is defined as the "science of locating and removing interference with the transmission or expression of nerve force... by the correction of misalignments or subluxations" 1. This statutory language grants chiropractors the authority and responsibility to perform examinations to identify these specific biomechanical lesions. The diagnostic process begins with a patient history and a physical examination, which may include orthopedic and neurological testing, postural analysis, and static and motion palpation of the spine and other articulations. All findings from these procedures must be documented in a separate, adequate, and accurate written clinical record for each patient, a standard mandated by the Massachusetts Board of Registration of Chiropractors under 233 CMR 4.05 4.
A key aspect of diagnostic authority in the state is that a chiropractor's objective findings can be sufficient to warrant care. According to 233 CMR 4.01(4), a "chiropractic analysis which identifies the existence of a chiropractic subluxation/segmental and somatic dysfunction may be the basis for chiropractic care, even in the absence of a subjective complaint" 2. This regulation empowers the chiropractor to initiate a treatment plan based on their professional examination and diagnostic conclusion, rather than relying solely on the patient’s reported symptoms. The examination and resulting analysis are intended to be specific to the chiropractic model of locating vertebral subluxations and other joint dysfunctions that may interfere with nervous system function.
Massachusetts law authorizes chiropractors to use diagnostic imaging, specifically plain film radiography or X-rays, to aid in their analysis. This authority allows practitioners to order, take, and interpret X-rays to assess spinal and skeletal integrity, identify misalignments, and rule out pathologies or contraindications to chiropractic adjustment, such as fractures or tumors. The use of X-ray imaging in the profession has a long history, championed early on by developers like B.J. Palmer, who promoted a specific radiographic analysis known as spinography 11. However, in modern Massachusetts practice, the use of imaging is not considered a routine screening procedure for all patients. Its application must be clinically justified and documented in the patient's record. The ordering of excessive or unnecessary radiographs could be interpreted as an "overutilization of practice," an offense that may subject a chiropractor to disciplinary action by the Board under 233 CMR 4.08 8. While the scope is most explicit for X-rays, the diagnostic process may also involve referring patients for other advanced imaging studies like MRI or CT scans when clinically indicated to inform the diagnosis or co-manage a case with another healthcare provider. The entire diagnostic protocol, from the initial physical examination to the interpretation of imaging, is held to a standard of care, and failure to practice competently can result in disciplinary action 6.
Practice limitations and explicitly prohibited acts
The legal scope of chiropractic practice in Massachusetts is defined not only by what is permitted but also by what is explicitly or implicitly forbidden. The foundational legal definition of chiropractic in the Commonwealth confines the practice to "the science of locating and removing interference with the transmission or expression of nerve force in the human body, by the correction of misalignments or subluxations" 1. This specific definition inherently creates clear boundaries and prohibits chiropractors from engaging in activities that fall outside of this scope. Any action beyond these statutory limits can be deemed negligent or incompetent practice and may subject the practitioner to disciplinary proceedings by the Board of Registration of Chiropractors 6.
Among the most significant prohibitions are those related to pharmacology and surgery. Massachusetts law does not grant chiropractors the authority to prescribe or dispense legend drugs. The practice is defined as a non-pharmaceutical approach to health, focusing on manual correction of the vertebral column and adjacent structures to restore and maintain health 1. Similarly, the performance of surgery, including incisive procedures, is strictly outside the chiropractic scope of practice. The legal framework provides no provision for chiropractors to perform any procedure that cuts or pierces human tissue in a surgical manner. These prohibitions maintain a clear distinction between the chiropractic profession and the practice of medicine, a distinction that has been a central theme throughout the profession's history since its founding by D.D. Palmer, who emphasized a drugless, hands-on approach.
The status of certain adjunctive and specialized therapies is also delineated by regulation and the primary definition of practice. For instance, the treatment of animals is not included within the scope of chiropractic in Massachusetts. The statutory definition explicitly limits the practice to the "human body," thereby precluding licensed chiropractors from legally providing chiropractic adjustments or related care to non-human animals 1.
Furthermore, the use of procedures such as acupuncture or dry needling is not explicitly authorized. The Massachusetts regulations list approved "Supportive Procedures and Therapies" which may be used in addition to the primary chiropractic adjustment. This list includes modalities like braces, traction, thermal therapies, ultrasound, electrical stimulation, and dietary and nutritional counseling 3. However, the regulations do not name acupuncture or dry needling as approved supportive procedures. The omission from this specific list signifies that these practices are not considered part of the standard chiropractic scope in the Commonwealth. Performing unlisted procedures could be interpreted as practicing outside the defined scope, creating significant legal and professional risk for the licensee. All actions by a chiropractor are expected to adhere to the established standards of practice, and deviations can lead to board review and potential sanctions for misconduct 6.
Standards of professional conduct, advertising, and patient records
Beyond defining the technical procedures a chiropractor may perform, Massachusetts law establishes rigorous standards for the ethical and administrative management of a practice. These regulations are enforced by the Board of Registration of Chiropractors to ensure patient safety and professional integrity. Central to this regulatory framework is the mandate for meticulous record-keeping. According to 233 CMR 4.05, a chiropractor must establish and maintain a separate, adequate, and accurate written clinical record for each patient 4. This record serves as the legal and clinical account of the patient's care. To be considered adequate, the documentation must contain a patient history, details of the physical examination, diagnostic findings, a working diagnosis, and a coherent treatment plan. The record must justify the course of care by documenting the clinical rationale, such as the identification of a chiropractic subluxation or segmental dysfunction, which can form the basis for treatment even without a patient's subjective complaint 2. These records are essential for substantiating that the care provided aligns with the legal definition of chiropractic: the science of locating and removing interference with nerve force to restore health 1.
The Board also regulates how licensees communicate with the public through 233 CMR 4.13, which governs advertising 5. While chiropractors are permitted to advertise their services, they are strictly prohibited from engaging in any advertising that is deceptive, misleading, or false 5. This includes making unsubstantiated claims about curing specific conditions, misrepresenting a practitioner's credentials or experience, or using testimonials in a way that creates an unjustifiable expectation of results. The historical development of chiropractic, marked by a drive to establish a distinct professional identity, as chronicled in works like Three generations: a history of chiropractic 11, provides a context for understanding the stringency of modern advertising regulations. These rules are designed to foster public trust and prevent the exploitation of vulnerable patients by ensuring that all promotional materials are truthful and verifiable.
A critical component of professional conduct involves the appropriate application and duration of chiropractic care. The Board explicitly prohibits the overutilization of practice, which is defined as providing excessive treatment or engaging in excessive billing 8. A chiropractor who engages in overutilization may be subject to disciplinary action 8. The determination of what constitutes "excessive" is based on the patient's specific clinical condition, the documented diagnosis, and the generally accepted standards of chiropractic practice. The patient's clinical record, mandated by 233 CMR 4.05, serves as the primary evidence to substantiate the necessity, frequency, and duration of treatments 4. Treatment plans should be goal-oriented, subject to regular review, and modified based on the patient's progress. This regulation ensures that care is therapeutically necessary and focused on the goal of restoring and maintaining health, rather than being prolonged for financial gain 1.
Licensure process and disciplinary actions
The regulation of the chiropractic profession in Massachusetts, from initial credentialing to the enforcement of professional standards, is the responsibility of the Massachusetts Board of Registration of Chiropractors (the Board). The lifecycle of professional oversight begins with a rigorous licensure process. To qualify for a license, an applicant must be a graduate of a chiropractic school or college accredited by the Council on Chiropractic Education (CCE), have passed all required parts of the examinations administered by the National Board of Chiropractic Examiners (NBCE), and successfully pass a state-specific jurisprudence examination on the laws and regulations governing chiropractic practice in the Commonwealth. This ensures that all licensed practitioners demonstrate a foundational understanding of the legal and ethical obligations specific to Massachusetts, including the rules on patient records, advertising, and the grounds for disciplinary action.
Once a license is granted, a chiropractor is subject to the continuous oversight of the Board, which is empowered to investigate complaints and impose disciplinary sanctions. The disciplinary process is typically initiated by a complaint filed with the Board, which may come from patients, insurance providers, law enforcement, or other sources. The Board then conducts an investigation to determine if a violation of its regulations has occurred. A critical component of any investigation is the review of the practitioner's clinical records. Under 233 CMR 4.05, a chiropractor has a legal duty to establish and maintain a separate, adequate, and accurate written clinical record for each patient, and failure to do so can itself be grounds for discipline 4. These records provide the primary evidence for evaluating the appropriateness of care, billing practices, and adherence to treatment plans.
The specific grounds for disciplinary action are enumerated in 233 CMR 4.06, which provides the Board with broad authority to sanction licensees for unprofessional conduct 6. These grounds include, but are not limited to, the conviction of certain criminal offenses, engaging in fraud or deceit in the practice of chiropractic, and demonstrating gross misconduct, negligence, or incompetence. For instance, a chiropractor who engages in advertising that is deceptive, misleading, or false violates 233 CMR 4.13 and may be disciplined for deceit 5. Similarly, providing excessive treatment or generating excessive bills for services, a practice defined as overutilization in 233 CMR 4.08, can be deemed a form of negligent or incompetent practice and may subject the chiropractor to sanctions 8. Following an investigation and a formal hearing, if a chiropractor is found to have violated these standards, the Board may impose a range of penalties. These can include a formal reprimand, probation, suspension, or complete revocation of the license to practice, depending on the severity of the offense. This system of self-regulation reflects the profession's historical efforts to establish legitimacy and public trust, a central theme in the development of chiropractic as a distinct healing art as described by early proponents like D. D. Palmer.
Massachusetts' scope in national context
The chiropractic scope of practice in Massachusetts is one of the more conservative in the United States, adhering closely to the profession's historical "straight" chiropractic philosophy. This approach contrasts sharply with the "mixer" or expanded-scope models adopted by a majority of other state jurisdictions. The legal definition of chiropractic in the Commonwealth is foundational to this distinction, defining the practice as "the science of locating and removing interference with the transmission or expression of nerve force in the human body, by the correction of misalignments or subluxations" 1. This language is a direct legislative echo of the principles first articulated by the founder of chiropractic, D. D. Palmer, who focused exclusively on the vertebral subluxation as the cause of disease.
This statutory definition places Massachusetts within a historical tradition that emphasizes the adjustment as the sole therapeutic tool. The schism between "straight" chiropractors, who follow this Palmer-centric model, and "mixer" chiropractors, who incorporate other therapies like physiotherapy, nutrition, and diagnostics, has defined the profession's internal politics for more than a century 11. Massachusetts law reinforces its "straight" orientation by stating that a chiropractic analysis identifying a subluxation can be the basis for care even when a patient has no subjective complaint 2. This differs significantly from states with broader scopes, where care is more often predicated on a standard medical diagnosis of a condition or symptom. The legislative and regulatory evolution in states like Texas and Wisconsin, for example, documents a different path, one that led to a broader integration of diagnostic and therapeutic procedures beyond the classic adjustment 9, 10.
However, the Massachusetts scope is not purely "straight". The state's Board of Registration of Chiropractors does permit a defined list of "Supportive Procedures and Therapies" under 233 CMR, § 4.02. These are explicitly designated as additions to the primary chiropractic adjustment and include the use of braces, traction, thermal modalities, ultrasound, electrical muscle stimulation, and dietary or nutritional advice 3. While the inclusion of these modalities appears to be a "mixer" characteristic, the regulatory language frames them as ancillary to the core practice of correcting subluxations, not as standalone treatments. This regulatory structure maintains the primacy of the adjustment, positioning Massachusetts as a hybrid but philosophically conservative jurisdiction. It has resisted the national trend toward broader scopes that, in some states, have come to include practices like acupuncture, obstetrics, or the authority to prescribe certain legend drugs.
Sources
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'Practice of chiropractic' is legally defined as the science of locating and removing interference with the transmission or expression of nerve force in the human body, by the correction of misalignments or subluxations of the bony articulation and adjacent structures, more especially those of the v - https://codes.findlaw.com/ma/part-i/title-xvi/chap-112/sect-89.html
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233 CMR 4.01(4) states that a chiropractic analysis which identifies the existence of a chiropractic subluxation/segmental and somatic dysfunction may be the basis for chiropractic care, even in the absence of a subjective complaint. - https://www.mass.gov/doc/233-cmr-4-standards-of-practice-and-professional-conduct/download
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233 CMR, § 4.02 - Definition and Use of Supportive Procedures and Therapies - https://www.law.cornell.edu/regulations/massachusetts/233-CMR-4-02
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According to 233 CMR 4.05, a chiropractor must establish and maintain a separate, adequate, and accurate written clinical record for each patient. - https://www.law.cornell.edu/regulations/massachusetts/233-CMR-4-05
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233 CMR 4.13 stipulates that a chiropractor may advertise services but shall not engage in advertising that is deceptive, misleading, or false. - https://www.law.cornell.edu/regulations/massachusetts/233-CMR-4-13
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233 CMR 4.06 provides the grounds for disciplinary action by the Board, which include convictions of certain criminal offenses, fraud, deceit, and negligent or incompetent practice. - https://www.law.cornell.edu/regulations/massachusetts/233-CMR-4-06
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R. C. Schafer, Clinical malpractice (1983) - https://openlibrary.org/works/OL3085001W
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233 CMR, § 4.08 - Overutilization of Practice - https://www.law.cornell.edu/regulations/massachusetts/233-CMR-4-08
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The Rise of Chiropractic, 1931 - https://www.abebooks.com/book-search/title/the-rise-of-chiropractic/author/chittenden-turner/
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Textbook of chiropractic technique by F. P. DeGiacomo (1981) - https://openlibrary.org/works/OL6099349W
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Three generations: a history of chiropractic by David D. Palmer (1967) - https://openlibrary.org/works/OL6449150W