Machine Ready US Public Law

Massachusetts — General Laws of Massachusetts

Complete, unannotated statutory corpus and directed cross-reference citation graph for the Commonwealth of Massachusetts across all 34 active titles and 614 distinct chapters, cryptographically sealed from official General Court of the Commonwealth of Massachusetts (malegislature.gov) sources.

34 Active Titles
614 Distinct Chapters
26,812 Statutory Sections
97,555 Subsections
25,827 Citation Edges
100% AKN 3.0 XSD Valid
Single-Snapshot Dataset Acquisition • 10/2026 Edition

General Laws of Massachusetts — Complete Medallion Snapshot

One-time purchase for the complete October 2026 (10/2026) edition single-snapshot dataset of the General Laws of Massachusetts. Includes perpetual commercial license rights to the Bronze raw source payloads, Silver OASIS Akoma Ntoso 3.0 XML archive, Gold Apache Parquet tables (sections, subsections, edges), and SHA-256 provenance manifests.

Price: $2,000 USD  |  Edition: 10/2026 Snapshot  |  Delivery: Snowflake Marketplace / Direct Archive  |  License: Perpetual Snapshot License  |  Purchase & Download Snapshot →
Keystone Legal Data — Commercial Dataset License Agreement Standard Single-Snapshot Terms (v2026.10)

1. Grant of Perpetual Single-Snapshot License

Upon payment of the one-time $2,000 USD license fee, Keystone Data Services LLC, d/b/a Keystone Legal Data ("Licensor"), grants Customer ("Licensee") a perpetual, non-exclusive, non-transferable, worldwide enterprise license to store, query, index, and use the 10/2026 Edition Single-Snapshot Dataset of the General Laws of Massachusetts (including all delivered Bronze source files, Silver OASIS Akoma Ntoso 3.0 XML files, Gold Parquet tables, directed citation graph schemas, and cryptographic manifests, collectively the "Licensed Dataset"). Future statutory editions or legislative updates are sold separately as independent snapshots.

2. Permitted Enterprise, Analytics & AI/LLM Uses

Licensee may freely integrate the Licensed Dataset into internal data warehouses, legal research platforms, retrieval-augmented generation (RAG) pipelines, vector databases, knowledge graphs, and machine learning or large language model (LLM) training, fine-tuning, and inference systems, and may display statutory excerpts and citation outputs to end users in the ordinary course of Licensee's products and services.

3. Restrictions on Bulk Redistribution

While the underlying enacted statutory text of the Commonwealth of Massachusetts is in the public domain under the government edicts doctrine, the normalized schema, structural subsection shredding, OASIS Akoma Ntoso 3.0 XML markup, resolved citation graph topology, and cryptographic lineage manifests are proprietary data engineering deliverables of Licensor. Licensee may not resell, sublicense, publish, or redistribute the Licensed Dataset in bulk or as a standalone statutory data product or competing data catalog.

4. Provenance & Disclaimer of Warranties

Every record in the Licensed Dataset is cryptographically sealed via SHA-256 to its source legislative payload as published by the official legislative authority as of the snapshot date. The Licensed Dataset is provided "AS IS" for analytical and informational purposes and does not constitute legal advice. Licensor's aggregate liability under this Agreement shall not exceed the license fee paid for the snapshot.


Medallion Architecture Deliverables

Three-tier statutory distribution with end-to-end SHA-256 cryptographic lineage from raw legislative payload to analytical Parquet tables.
Bronze Layer

Immutable Source Payloads

Verbatim section payloads captured from the General Court of the Commonwealth of Massachusetts (malegislature.gov) with wire-level SHA-256 hashes and structural hierarchy metadata.

  • Source Authority General Court of Massachusetts
  • Sealed Payloads 26,812 Files
  • Lineage Manifest bronze_manifest.jsonl
  • Integrity Seal manifest.sha256 (0444)
Silver Layer

OASIS Akoma Ntoso 3.0 XML

Normalized, schema-validated OASIS LegalDocML (Akoma Ntoso 3.0) XML documents containing strictly enacted statutory text, subsection hierarchy, and session-law history citations.

  • XML Standard OASIS AKN 3.0 (XSD 1.0)
  • Validated Docs 26,812 / 26,812 (100%)
  • History Coverage 26,812 / 26,812 (100.0%)
  • Third-Party IP / Notes 0 (Strictly Stripped)
Gold Layer

Apache Parquet & Citation Graph

Snappy-compressed Apache Parquet tables (sections, subsections, edges) and pre-indexed DuckDB analytical catalog ready for immediate SQL, Polars, PyArrow, or RAG/LLM ingestion.

  • Section Table 26,812 Rows (22.64 MB)
  • Subsection Table 97,555 Rows (20.64 MB)
  • Citation Graph 25,827 Directed Edges
  • DuckDB Catalog keystone_mgl.duckdb
Artifact / Archive Layer / Format Records Size SHA-256 Cryptographic Seal
sections.parquet Gold Columnar Table (Snappy Parquet) 26,812 22.64 MB b8c9d75301ae73d6ea5f90dccc5b94888782f3a4e8b1ab761dad3bf9b234ba53
subsections.parquet Gold Hierarchical Paragraphs (Snappy Parquet) 97,555 20.64 MB ce9fb771a1ab6de2de1aee48d755898f08aa62656f9d19f583d021046f342201
edges.parquet Gold Directed Citation Graph (Snappy Parquet) 25,827 400.63 KB 782f85aecc3eba5b53bbdc503bd1c9d70de434f12f9bc9ae1a329100fbbc445c
keystone_mgl_bronze_2026-10.tar.gz Complete Bronze Source Archive (Raw Payloads + Manifests) 26,812 files 18.25 MB 17f8faba444b103bd6d92fe8b270aea607f7058b3ee72e09794a5ba1ad06d9b8
keystone_mgl_silver_2026-10.tar.gz Complete Silver OASIS AKN 3.0 XML Archive (XML + XSD + Manifests) 26,812 docs 23.72 MB 78420bfefbe5e7778f9d4f7cac98d316dff34c34f16a43e45c2ced6152ff59de
keystone_mgl_gold_2026-10.tar.gz Complete Gold Release Archive (Parquet + Manifests) 150,194 37.57 MB 2f69ab57f1a209552363efb05dbc790689fbbe9252b45e96580629c0959cf86e
keystone_mgl_title1_sample.tar.gz Part I, Title I Sample Showcase Slice (Jurisdiction and Emblems of the Commonwealth, the General Court, Statutes and Public Documents) 183 secs 214.46 KB bf79308fb24669abba74e24f3070a012ad20b2d9861006cfe8a092c8cf1f4232

Canonical Record Specimen: M.G.L. 1-3

Side-by-side view of Section 1-3 (Marine boundaries of commonwealth) in Silver OASIS Akoma Ntoso 3.0 XML and Gold Parquet JSON representation.
data/silver/mgl/akn_xml/title_01_pi_ti/MGL-1-3.xml Silver OASIS AKN 3.0
<?xml version='1.0' encoding='utf-8'?>
<akomaNtoso xmlns="http://docs.oasis-open.org/legaldocml/ns/akn/3.0"
            xmlns:meta="https://pipeline.local/schema/meta">
  <act name="statute">
    <meta>
      <identification source="#pipeline">
        <FRBRWork>
          <FRBRthis value="/us-ma/act/mgl/title-pi-ti/section-1-3"/>
          <FRBRdate date="2026-10-17" name="snapshot"/>
          <FRBRcountry value="US-MA"/>
        </FRBRWork>
      </identification>
      <proprietary source="#pipeline">
        <meta:source_html_sha256>9a2242800f6c4465...052e4</meta:source_html_sha256>
        <meta:doc_id>MGL-1-3</meta:doc_id>
        <meta:jurisdiction>US-MA</meta:jurisdiction>
        <meta:container_id>PI-TI</meta:container_id>
        <meta:chapter_id>Chapter 1</meta:chapter_id>
        <meta:chapter_name>Chapter 1 — JURISDICTION OF THE COMMONWEALTH AND OF THE U...</meta:chapter_name>
        <meta:history_note>M.G.L. Chapter 1, § 3 (General Court 2026 Edition).</meta:history_note>
      </proprietary>
    </meta>
    <body>
      <section eId="sec_1-3">
        <num>1-3</num>
        <heading>Marine boundaries of commonwealth</heading>
        <paragraph eId="sec_1-3__para_1" class="indent-1">
          <content>
            <p>Subject to such lateral boundaries as have been or shall be
            established between the commonwealth and adjacent coastal
            states, the territorial limits of the commonwealth shall
            extend seaward to the outer limits of th...</p>
          </content>
        </paragraph>
        <paragraph eId="sec_1-3__para_2" class="indent-1">
          <content>
            <p>The coastal baseline of the commonwealth, from which the
            breadth of the territorial sea is measured, shall be drawn in
            conformity with the treaties to which the United States is a
            party.</p>
          </content>
        </paragraph>
        <!-- 3 additional paragraph(s) omitted for brevity -->
      </section>
    </body>
  </act>
</akomaNtoso>
gold.sections / gold.subsections / gold.edges Gold Parquet Row
// 1. sections.parquet (Primary Key: doc_id = "MGL-1-3")
{
  "jurisdiction": "US-MA",
  "doc_id": "MGL-1-3",
  "universal_doc_id": "US-MA-MGL-1-3",
  "container_type": "title",
  "container_id": "PI-TI",
  "container_name": "Part I, Title I — JURISDICTION AND EMBLEMS OF THE COMMONWEALTH, THE GENERAL COURT, STATUTES AND PUBLIC DOCUMENTS",
  "title": 1,
  "chapter_id": "Chapter 1",
  "chapter_name": "Chapter 1 — JURISDICTION OF THE COMMONWEALTH AND OF THE UNITED STATES",
  "subchapter_id": "Part I",
  "subchapter_name": "Part I — ADMINISTRATION OF THE GOVERNMENT",
  "section_number": "1-3",
  "heading": "Marine boundaries of commonwealth",
  "paragraph_count": 5,
  "history_note": "M.G.L. Chapter 1, § 3 (General Court 2026 Edition).",
  "source_html_sha256": "9a2242800f6c4465835b3c68e6f0ffce40ac28c8108bcdab29f55ade345052e4",
  "akn_sha256": "7478f8323a94b7d07874b13bb09de16ee0e618b561aa2ca093398bd1a97da68d"
}

// 2. subsections.parquet (5 rows for MGL-1-3)
{
  "doc_id": "MGL-1-3",
  "paragraph_eid": "sec_1-3__para_1",
  "paragraph_seq": 1,
  "enum_label": "",
  "indent_level": 1,
  "text": "Subject to such lateral boundaries as have been or shall be established between the commonwealth and adjacent coastal states, the territorial limits of the commonwealth shall extend seaward to the outer limits of th..."
}

// 3. edges.parquet (Sample Directed Citation Edge in General Laws of Massachusetts)
{
  "jurisdiction": "US-MA",
  "source_doc_id": "MGL-10-10A",
  "source_section": "10-10A",
  "target_doc_id": "MGL-23A-57",
  "target_section": "23A-57",
  "target_title": 2,
  "citation_count": 1
}

Gold Parquet Schema Specification

Standardized cross-jurisdiction schema shared across all 57 Keystone Legal Data statutory repositories.
Table Column Name Parquet Type Description
sections.parquet jurisdiction / doc_id / universal_doc_id VARCHAR Jurisdiction code (US-MA), collection-scoped primary key (MGL-1-3), and global key.
container_type / container_id / container_name VARCHAR Top-level statutory container metadata (e.g., title, PI-TI, Part I, Title I — JURISDICTION AND EMBLEMS OF THE COMMONWEALTH, THE GENERAL COURT, STATUTES AND PUBLIC DOCUMENTS).
chapter_id / chapter_name VARCHAR Intermediate chapter/article identifier and official heading (100% populated across all 26,812 sections).
section_number / heading VARCHAR Canonical section number (e.g., 1-3) and cleaned catchline heading.
full_text VARCHAR Complete, newline-delimited statutory text of the section (strictly enacted text only).
history_note VARCHAR Legislative session-law enactment and amendment history citations (26,812 / 26,812 sections populated).
paragraph_count INT64 Number of child subsection paragraphs shredded into subsections.parquet.
source_html_sha256 / akn_sha256 VARCHAR Cryptographic SHA-256 digests linking the Gold row to its exact Silver XML and Bronze raw payload.
subsections.parquet paragraph_eid / paragraph_seq VARCHAR / INT64 OASIS AKN 3.0 element ID (sec_1-3__para_1) and deterministic 1-based sequence order within the section.
enum_label / indent_level VARCHAR / INT64 Extracted structural enumerator (e.g., (a), (1), (A)) and hierarchical indentation depth (1–6).
text VARCHAR Cleaned text of the individual statutory subsection or paragraph.
edges.parquet source_doc_id / target_doc_id VARCHAR Directed citation graph edge resolving in-text statutory references from citing section to cited target section.
source_section / target_section / citation_count VARCHAR / INT64 Canonical section numbers and frequency count of cross-references between the pair.

Complete 34-Title Inventory (General Laws of Massachusetts)

Breakdown of distinct chapters and statutory sections across all 34 active titles in the October 2026 edition.
Title Title Heading Chapters Sections
Part I, Title IJurisdiction and Emblems of the Commonwealth, the General Court, Statutes and Public Documents4183
Part I, Title IIExecutive and Administrative Officers of the Commonwealth783,154
Part I, Title IIILaws Relating to State Officers6523
Part I, Title IVCivil Service, Retirements and Pensions5443
Part I, Title VMilitia2278
Part I, Title VICounties and County Officers7260
Part I, Title VIICities, Towns and Districts381,473
Part I, Title VIIIElections10633
Part I, Title IXTaxation341,147
Part I, Title XPublic Records237
Part I, Title XICertain Religious and Charitable Matters399
Part I, Title XIIEducation12666
Part I, Title XIIIEminent Domain and Betterments4115
Part I, Title XIVPublic Ways and Works25992
Part I, Title XVRegulation of Trade492,098
Part I, Title XVIPublic Health201,524
Part I, Title XVIIPublic Welfare25712
Part I, Title XVIIIPrisons, Imprisonment, Paroles and Pardons4299
Part I, Title XIXAgriculture and Conservation11694
Part I, Title XXPublic Safety and Good Order201,124
Part I, Title XXILabor and Industries17862
Part I, Title XXIICorporations954,048
Part II, Title ITitle to Real Property13470
Part II, Title IIDescent and Distribution, Wills, Estates of Deceased Persons and Absentees, Guardianship, Conservatorship and Trusts23824
Part II, Title IIIDomestic Relations8357
Part III, Title ICourts and Judicial Officers19704
Part III, Title IIActions and Proceedings Therein16776
Part III, Title IIIRemedies Relating to Real Property8213
Part III, Title IVCertain Writs and Proceedings in Special Cases23602
Part III, Title VStatutes of Frauds and Limitations256
Part III, Title VICosts and Fees2115
Part IV, Title ICrimes and Punishments17845
Part IV, Title IIProceedings in Criminal Cases10475
Part V, Title IThe General Laws, and Express Repeal of Certain Acts and Resolves211
Total (34 Titles) Complete General Laws of Massachusetts Corpus 614 26,812