Metal Detecting in Massachusetts

1. The rule, in full

Massachusetts – 302 CMR 12.04(12), and see the political-subdivision file

Massachusetts has two instruments and they point in opposite directions. Both belong on the state page, labelled by the land each governs.

1. DCR property – 302 CMR 12.04(12), and it is permissive

Read from 302 CMR 12.00 as supplied by the Publications and Regulations Division in answer to a records request, effective 10 June 2022, 44 pages, 107,464 characters extracted. Checked 8 Oct 2026.

The earlier fetch of this document failed on the proxy and the binary target, not at the publisher: the download URL works in a browser. And there is no free official online version to re-check it against. The Division confirmed that the CMRs are available by paid subscription through the Division, with hard copies through the State Bookstore. Recorded in METHODOLOGY under rule 11 beside California, which is the same problem one degree worse.

12.04(12) "With the exception of coastal and inland sandy beaches, no person may use or offer for use metal detectors, except with permission from DCR personnel, for the purposes of locating lost personal property."

Exact, including the carve-out. Nothing in the old entry's reading of this provision needed correcting.

Scope, 302 CMR 12.01(1) Purpose:

"302 CMR 12.00 governs the conduct of activities on property of the Commonwealth under the care, custody, and control of the Department of Conservation and Recreation."

Determination for this rule: DCR property only. Does NOT reach municipal parks.

Read carefully, it grants two things. Coastal and inland sandy beaches are carved out entirely – no permission needed. Everywhere else on DCR land, permission from DCR personnel is needed and the stated purpose is "locating lost personal property", which does not cover relic hunting. Status: allowed_in_some_areas, with the beach carve-out quoted, because that is the usable part.

The section is 12.04, "Rules of Conduct on DCR Properties – Generally", and the provision is item (12) within it. Secondary sources cite "302 CMR 12.04" loosely or give no number; the full cite is 302 CMR 12.04(12).

Four provisions in the same chapter that this entry did not have

A second approval for archaeological work, 12.04(22):

"No person may conduct archaeological investigation unless permitted by the State Archaeologist in accordance with M.G.L. c. 9 § 27C and approved by the Division Director."

Two approvals, not one. The c. 9 § 27C permit is the instrument in section 2 below; on DCR land the Division Director has to approve as well. Anyone told that a State Archaeologist permit is sufficient has been told half of it.

A reporting duty, and it is a real one, 12.04(23):

"The unanticipated discovery of historic artifacts or human remains shall be reported immediately to DCR."

"Shall", and "immediately". No threshold of value, no defined deadline beyond immediacy, and the trigger is an unanticipated discovery – which is exactly what a detectorist has. This belongs beside West Virginia's forty-eight hours and Iowa's five days rather than beside Maryland's "please report it".

A fifty-year definition, 12.02:

"Cultural Resource. A district, site, building, structure, landscape, object, or ethnographic resource that is at least 50 years old and has important historical, cultural, scientific or technological associations. Cultural resources also include pre-historic or historic archeological sites containing physical remains or indications of past human activity and/or any artifacts that have been constructed or manipulated by human influence and which hold potential significance for understanding past, present or future human behavior."

So Massachusetts carries a fifty-year threshold in two instruments: this one, and the field-investigation scheme in section 2. Worth stating because the federal floor is a hundred years and readers import it.

And the penalty is unusual, 12.20:

"(1) Any person who by his or her actions violates any provision of 302 CMR 12.00 … may be denied admittance to a DCR property, and may be subject to fine, eviction, banning or a combination of those penalties." "(3) Ban. (a) A person may be banned from DCR property upon written notification from the Division Director. Such notification shall provide for an opportunity for a hearing in accordance with M.G.L. c.30A. (b) A ban shall be for a period not to exceed one year. (c) A person who has been duly banned from DCR property is subject to arrest and prosecution if such person violates the ban." "(4) Any person who violates a provision of 302 CMR 12.00 is subject to a fine, as may be provided by law."

The ban is the consequence worth knowing about. The fine is unquantified in the regulation, but exclusion from all DCR property for up to a year, enforced by arrest, is a materially different thing from a citation, and no secondary source consulted for this entry mentions it.

2. All public land including municipal – M.G.L. c. 9, 27C

This is the one that matters, and its entry is in STATE-LAND-political-subdivision.md. In short: a State Archeologist permit is required before conducting "field investigation activities" on any land owned or controlled by the Commonwealth, its agencies or its political subdivisions, and 950 CMR 70.04 defines that term to include "the entrance onto a site with that intent". Massachusetts is the seventh state to reach municipal land and the first to reach the activity rather than the find.

Do not merge the two. A reader can be inside the DCR beach carve-out and still inside the Antiquities Act, because the two instruments govern different things – one is about where a detector may be switched on, the other is about what the searcher is looking for. The Massachusetts page has to carry both, and the shared "you may sweep, you may not take" treatment does not fit this state without a qualifier.

Sources: mass.gov published 302 CMR 12.00 PDF, parsed locally; malegislature.gov M.G.L. c. 9, 27C; mass.gov published 950 CMR 70.00 PDF, parsed locally. Checked 19 Sep 2026.

Fetch note worth keeping. mass.gov returns HTTP 403 to a plain fetch and to a fetch carrying only a browser User-Agent, and ScraperAPI returned a corrupted PDF that pypdf could not enumerate – a failure that looks exactly like "no such provision" and cost one credit to learn. It serves the file correctly to a request carrying the full browser header set (Accept, Accept-Language, Accept-Encoding with decompression, and the Sec-Fetch-* headers). That is a cheaper first move than the API for any state site that 403s.

What was read for the land-class sweep, and what was not. Read: 321 CMR 11.00 in full. Not read: the remainder of 321 CMR, and 302 CMR 12.00, which could not be re-read because the published download is corrupt. The finding above therefore covers what was read and nothing beyond it – see sweep/README.md, "A KNOWN LIMIT OF THIS SWEEP", on why a chapter set aside on its title is an unread chapter.

2. Where it reaches city and county land

Massachusetts – M.G.L. c. 9, 26 to 27C + 950 CMR 70.00 (Antiquities Act)

Read at source: the statute at malegislature.gov (the General Court's own site), the regulation at mass.gov as the published 950 CMR 70.00 PDF, parsed locally.

THIS IS THE FIRST STATE IN THE PROJECT THAT REACHES THE ACTIVITY. Kansas, Colorado, New Mexico, Texas, Washington, Wisconsin and West Virginia all reach the find, the site or a professional licensing category. Massachusetts reaches going onto the land with the intent.

Operative text, M.G.L. c. 9, 27C:

"No person, corporation, agency or authority of the commonwealth or any of its political subdivisions shall conduct field investigation activities on any land owned or controlled by the commonwealth, its agencies or political subdivisions or on any historic or archeological landmarks or on any lands restricted by section thirty-one of chapter one hundred and eighty-four of the General Laws without first securing a permit from the state archeologist."

Scope: reaches municipal land, twice over. 950 CMR 70.03(1) repeats the statute and then says it again in plainer words:

"Any individual, corporation, institution, school, agency, or other entity who plans to conduct Destructive Archeological Field Investigations must secure a permit from the State Archeologist if the field investigations will be located on state, county or municipal property; or on lands which are controlled by state, county or municipal easements; or on lands which are being evaluated by state, county or municipal authorities as a part of proposed land modification projects; … or on any other lands owned or controlled by the Commonwealth, its agencies or political subdivisions."

The definition is what makes this different. 950 CMR 70.04:

"Field Investigation means the study of traces of human culture or other remains of any land or water site by means of surveying, digging, sampling, excavating or removing surface or subsurface objects, or the entrance onto a site with that intent."

Read plainly: walking into a municipal park intending to dig up traces of human culture is itself the regulated act. Nothing has to be found, and nothing has to be damaged.

Penalties, 950 CMR 70.30:

"(1) Any person … who shall conduct field investigations on land owned or controlled by the Commonwealth, its agencies, or any political subdivisions thereof … without first obtaining a permit … shall be guilty of a misdemeanor and shall be punished by a fine of not more than $500 or by imprisonment for not more than six months." "(2) Any person … who shall appropriate, deface, destroy or otherwise alter any site, specimen or landmark except in the course of activities authorized under permit … All specimens, objects and materials collected or excavated in violation of 950 CMR 70.30 shall be forfeited to the Commonwealth."

And 950 CMR 70.03(2):

"All specimens collected through field investigation activities conducted under permit as provided in 950 CMR 70.00 shall be the property of the Commonwealth."

What limits it, and this is the part the page must get right. The defined term is the study of "traces of human culture or other remains". Sweeping a town beach for dropped modern coins and jewellery is not the study of traces of human culture, and reading the rule as banning that would be the Georgia error run forward. Relic hunting on municipal ground is squarely inside the definition. The line is the searcher's object, exactly as New Mexico's line is the word "knowingly".

Two open questions, both recorded rather than resolved.

• Does a non-destructive sweep need a permit? Secondary sources say Non-Destructive field investigations do not require a permit and need only written notice to the State Archeologist. That carve-out is not in 950 CMR 70.00 as published. 70.20 is titled "Exceptions" and is entirely about human skeletal remains. The regulation does distinguish Destructive from Non-Destructive in the 70.04 definition, and lists "magnetometer studies … and other remote sensing studies" as Non-Destructive methods – but the permit requirement in 70.03(1) sentence one is not limited to Destructive investigations, and only sentence two is. Whether a detector sweep with no digging needs a permit turns on reading those two sentences together. That is a question for MHC, not for us to resolve on the page. Where the notice requirement comes from has not been established from a primary source.
• A defect in the statute itself. M.G.L. c. 9, 27 requires a permit for "a field investigation, as defined in section twenty-six A". Section 26A as it currently stands at malegislature.gov contains no definition of the term – it is a list of the state archeologist's duties. Section 26 does not define it either. The only definition in force is the regulatory one at 950 CMR 70.04. This is the Utah shape again: a cross-reference pointing at a definition that is not where the statute says it is. Quote 950 CMR 70.04 on the page, cite 27C for the prohibition, and do not repeat the 26A cross-reference as though it worked. Directory entry should read: in Massachusetts a permit from the State Archeologist is required before conducting field investigation activities – defined as studying traces of human culture by surveying, digging or removing objects, or entering a site intending to – on any land owned or controlled by the Commonwealth or by a city or town. It is a misdemeanour without one, and anything collected is forfeited. It should NOT read that metal detecting is banned in Massachusetts city parks; it should say that searching municipal ground for historic material is permit-controlled and that looking for modern lost property is a different thing. Separately and not to be merged: 302 CMR 12.04(12) governs DCR property only and is comparatively permissive – detecting is allowed on coastal and inland sandy beaches, and elsewhere on DCR land with DCR permission for recovering lost personal property. A reader can be inside the DCR allowance and still inside the Antiquities Act. Both go on the Massachusetts page, labelled by which land each one governs. Sources: malegislature.gov, M.G.L. c. 9, 26, 26A, 27 and 27C; mass.gov published 950 CMR 70.00 PDF, parsed locally; mass.gov published 302 CMR 12.00 PDF, parsed locally. Checked 19 Sep 2026.

3. Cities in Massachusetts that publish a rule

1 city in Massachusetts publishes a rule we can quote, out of 58 checked.

Of the 58 checked, 35 had pages on the city’s own site that we found and read. For the other 23 we could not locate a municipal source, so nothing is claimed about them either way.

4. County rules

No county check has been run for Massachusetts. That is not a finding that Massachusetts’s counties publish no rules. It means the question was never asked here, and this directory does not assert an answer it has not looked for. The county sweep covered 21 states; Massachusetts was not one of them.

5. Cities checked - no published rule

57 cities in Massachusetts were checked and have no published rule on this page. Of those, 57 returned no rule, and 0 did return something that has not been published – mostly rules that turned out to govern county land, which are in the county section above. A city here is not a city where detecting is allowed. It is a city whose own published material did not answer the question.

All 57 were checked on 13 September 2026, in one sweep, so that date applies to every row.

6. Clubs in Massachusetts

7 in our directory for Massachusetts - 3 verified against their own website or group, 4 we could not verify. Verified means we opened the link and read it. All Massachusetts clubs on the club directory, with meeting nights and contacts where we have them.

• Massachusetts Treasure Hunting Association - masstreasure.com · Watertown · verified
• Metal detecting Massachusetts - Facebook group · verified
• Silver City Treasure Seekers - Facebook group · Taunton · verified
• Cape Cod Metal Detectors - South Yarmouth · could not verify
• Colonial Treasure Hunters Assoc. Serge Botsaris - Boylston · could not verify
• Gateway Treasure Hunters Club - South Yarmouth · could not verify
• Massachusetts Organization for Research & Recovery - Fitchburg · could not verify

7. Land this page does not cover

This page answers for Massachusetts state land, and for city and county land where the state rule reaches it. Several other kinds of ground are not covered here, and naming them is more honest than letting a reader assume the page is complete.

Tribal land. This directory does not cover it, and will not.

There are 574 federally recognised tribal nations. Each is a sovereign jurisdiction with its own law, its own permitting, its own enforcement and its own cultural-resource provisions, and none of them is answered by a state's code or by any federal rule quoted on these pages. A one-line instruction to "get tribal permission" would be worse than this paragraph, because it implies one process and one authority where there are 574. If you are on or near tribal land, the governing law is that nation's, and the place to ask is that nation's own offices. Nothing on this page applies there.

BLM land is covered, partly, in its own place. The Bureau of Land Management holds about 245 million acres and the federal rule names metal detectors and permits them, which is the opposite of the national park rule. See BLM land: the detector is named, and permitted. That page covers the base regulation; it does not yet cover the supplementary rules individual BLM State Directors issue for particular field offices.

Named and not examined. These are recorded so their absence is visible rather than silent. No claim is made about any of them:

• Military withdrawn land, including ranges and training areas.
• Bureau of Reclamation land, which surrounds a great many reservoirs.
• Water district and irrigation district land.
• Wilderness, Wilderness Study Areas and National Conservation Areas, which carry designations of their own. And one general point about signs. The commonest piece of reasoning in this subject is "there was no sign, so it was allowed." Arizona's State Land Department answers it in writing, in condition 2 of its own Recreational Permit terms:

"You will comply with all laws, rules, regulations and ordinances. Posting is not required for these provisions to be enforceable."

That is Arizona's sentence about Arizona's provisions and this directory does not present it as the law of any other state. But the proposition it states is the one to carry: nothing read for this project makes a published rule's enforceability depend on a sign at the boundary. Where posting does matter, a specific provision says so, and that provision is quoted on the page where it occurs.