Massachusetts General Laws: Structure, Citations, and Access

The Massachusetts General Laws are the Commonwealth’s permanent statutes, organized into five Parts, roughly 282 Chapters, and thousands of numbered Sections that cover criminal penalties, employment rules, landlord-tenant rights, consumer protection, and most other areas of state law. You can read them for free on the legislature’s website at malegislature.gov, though the official version remains the printed edition. If you’ve been handed a citation in a court filing or a government notice, the General Laws are where that citation points.1General Court of Massachusetts. General Laws of Massachusetts

How the Code Is Organized

Everything is grouped into five Parts by subject:1General Court of Massachusetts. General Laws of Massachusetts

  • Part I — Administration of the Government (Chapters 1–182). The largest Part. Covers state government structure, elections, public employees, taxation, education, public health, housing, employment law, and business regulation.
  • Part II — Real and Personal Property and Domestic Relations (Chapters 183–210). Land ownership, mortgages, landlord-tenant rules, marriage, divorce, and adoption.
  • Part III — Courts, Judicial Officers, and Proceedings in Civil Cases (Chapters 211–262). How the courts work, including civil procedure, small claims, and probate.
  • Part IV — Crimes, Punishments, and Proceedings in Criminal Cases (Chapters 263–280). Criminal offenses, sentencing, arrest procedure, and defendants’ rights.
  • Part V — The General Laws, and Express Repeal of Certain Acts and Resolves (Chapters 281–282). A short closing Part about the code itself.

Each Part contains Titles, which group related chapters thematically, and Chapters are the unit most people actually work with. Inside each Chapter, numbered Sections contain the individual rules. When someone references “Chapter 93A,” they mean the consumer protection chapter inside Part I. “Section 2 of Chapter 93A” points to the specific provision declaring unfair and deceptive business practices unlawful.

How to Read a Statutory Citation

Legal documents reference statutes using a shorthand that looks like this: M.G.L. c. 93A, § 2. It reads as Massachusetts General Laws, Chapter 93A, Section 2, pointing to the state’s consumer protection statute on unfair trade practices.2General Court of Massachusetts. Massachusetts General Laws Chapter 93A Section 2 You will also see “G.L. c.” for the same thing. Once you recognize the pattern, you can navigate directly to any cited section on the legislature’s website by drilling down to the Part, Chapter, and Section numbers.

Chapters You’re Most Likely to Encounter

A handful of chapters come up repeatedly in workplace disputes, apartment searches, traffic stops, and family matters:1General Court of Massachusetts. General Laws of Massachusetts

  • Chapter 149 (Labor and Industries). Section 148 covers timely payment of wages; Section 52C gives you the right to review your personnel records.
  • Chapter 93A (Consumer Protection). Lets consumers sue over unfair or deceptive business practices and potentially recover double or triple damages.
  • Chapter 186 (Landlord-Tenant). Section 15B governs security deposits, including upfront charge limits and the interest-bearing account requirement.
  • Chapter 90 (Motor Vehicles). Section 24 is the driving-under-the-influence statute.
  • Chapter 269 (Crimes Against Public Peace). Section 10 covers illegal possession of firearms and dangerous weapons.
  • Chapter 140 (Licenses). Section 131 sets requirements for a license to carry firearms.
  • Chapter 119 (Child Welfare). Section 51A sets mandatory reporting requirements when child abuse or neglect is suspected.
  • Chapter 66 (Public Records). Section 10 gives you the right to inspect and copy public records held by government agencies.

If you’re facing any of these situations, read the chapter itself rather than relying on secondhand summaries.

How to Access the General Laws

The easiest route is malegislature.gov, which lets you browse by Part, Chapter, and Section or search by keyword. The site is free and kept current with legislative changes. One caveat the site itself notes: it is not the official version of the General Laws.1General Court of Massachusetts. General Laws of Massachusetts The Official Edition is the printed publication. For everyday research, the online text is fine. If you’re preparing a legal filing or need to rely on exact statutory wording in a dispute, verify against the Official Edition.

Annotated Versions

The free online text is unannotated, giving you the raw statute and nothing else. Annotated versions include the same text plus references to court decisions interpreting each section, cross-references to related regulations, and historical notes on how the language has changed. The two main publications are Massachusetts General Laws Annotated (on Westlaw) and Annotated Laws of Massachusetts (on Lexis). Each publisher selects its own case references, so checking both can turn up different relevant decisions.

Trial Court Law Libraries

For in-person help, the state runs 15 Trial Court Law Libraries across Massachusetts.3Mass.gov. Trial Court Law Libraries They offer printed and electronic resources, and librarians can help you navigate statutes tied to specific issues like eviction procedures or small claims filings. Many libraries also provide public terminals with access to the paid annotated databases.

When a New Law Actually Takes Effect

A signed bill is not always a law in force. Under Article XLVIII of the Massachusetts Constitution, most new laws do not take effect for 90 days, giving voters time to file a referendum petition challenging the law before it goes into force.4General Court of Massachusetts. Massachusetts Constitution If enough signatures are gathered within that window, the law is suspended and placed on the ballot at the next state election.

Two things can change the timing. The legislature can attach an emergency preamble, which makes the law effective on passage. The Governor can file a statement of emergency, which makes the law effective when the statement reaches the Secretary of the Commonwealth.5Mass.gov. Effective Dates of Laws in Massachusetts Some bills also specify their own effective date in the text. If you hear a new law has been signed, check for an emergency preamble or a delayed effective date before assuming it applies.

New laws are presumed to apply only going forward. Courts generally will not apply a statute to conduct that occurred before it took effect unless the legislature made its retroactive intent explicit.

Where the General Laws Fit in the Legal Hierarchy

Statutes do not stand alone. They sit between the Constitution above and regulations and local rules below, and that order decides which rule wins when they conflict.

The Massachusetts Constitution

The state Constitution sits above everything. If a statute conflicts with a constitutional provision, the Constitution controls. The Constitution also sets the ground rules for how laws are made, including the referendum process. Any challenge arguing a statute is unconstitutional is ultimately asking a court to apply this principle.

State Regulations

Below the General Laws sit state regulations, collected in the Code of Massachusetts Regulations (CMR). These are the detailed operational rules that state agencies write to carry out the broader mandates in the statutes.6Secretary of the Commonwealth of Massachusetts. Code of Massachusetts Regulations A statute might say a profession requires licensing to protect public safety; the regulations then specify training hours, exam content, fees, and renewal schedules. Agencies must follow Chapter 30A, the state’s Administrative Procedure Act, which requires public notice and hearings before regulations take effect.7General Court of Massachusetts. Massachusetts General Laws Chapter 30A Regulations carry the force of law, but if one conflicts with the statute it is supposed to implement, the statute wins.

Local Bylaws and Ordinances

Cities and towns have broad authority to govern local affairs under the Home Rule Amendment (Article LXXXIX), which lets municipalities adopt bylaws and ordinances on any subject the legislature could delegate.4General Court of Massachusetts. Massachusetts Constitution Local rules cannot conflict with the General Laws or the state Constitution. When they do, state law preempts them. Towns must submit new or amended bylaws to the Attorney General’s office, which has 90 days to review them for consistency with state law.8Mass.gov. Home Rule The Constitution also reserves certain subjects exclusively to the state legislature, including taxation, elections, and criminal penalties, so municipalities cannot legislate in those areas regardless of what their charter says.

The practical consequence: if a local rule and a state statute point in different directions, the statute controls. For zoning questions, local health rules, or municipal licensing requirements, check whether the General Laws address the same subject before assuming the town’s rule is the final word.