940 CMR 16.09
Enforcement Dates
The Attorney General of the Commonwealth of Massachusetts promulgates 940 CMR 16.00
pursuant to authority granted to him under M.G.L. c. 93A, § 2(c). 940 CMR 16.00 defines
certain unfair acts or practices but is not intended to describe all types of practices prohibited by
M.G.L. c. 93A, § 2. 940 CMR 16.00 does not legitimize acts that are not specifically prohibited
by 940 CMR 16.00, and does not alter or amend common law rights and remedies available to
consumers. 940 CMR 16.00 is designed to supplement existing statutes and regulations.
References to statutes and other regulations shall include amendments thereto from time to time.
16.0 l: Definitions
2/19/99
For purposes of 940 CMR 16.00, the following terms shall have the following meanings:
Average group diameter test result: shall mean the arithmetic mean of three separate group
diameter test results taken from a set distance.
Combination handle lock: shall mean a device which precludes the use of the handgun unless
the combination tumblers are properly aligned. This device may, for example, have the numbers
for the combination tumblers protrude from the handle of the handgun.
Educational collector: shall mean an individual who is properly licensed as a bonafide collector
pursuant to 520 CMR 7.00, and whose collection is maintained for purposes of display, research,
lecturing, demonstration, or historical significance, as opposed to being maintained for personal
enjoyment and/or possible future profit.
Group diameter test result: shall mean the largest spread in inches between the centers of any
of the holes made in a test target after firing five rounds from .the handgun in question at the
target from a set distance. The ammunition used shall be the type recommended by the handgun
manufacturer in its user manual, or if none is recommended, any standard ammunition of the
correct caliber in new condition.
Hammer deactivation device: shall mean a built-in device (or an extension of the hammer)
which allows a user manually to lower the handgun's hammer into a deactivated position, and
which must be manually re-toggled in order to re-cock the hammer before the handgun cun be
fired.
Handgun: shall mean a weapon, designed to be fired by the use of a single hand, from which
may be fired or ejected one or more solid projectiles propelled via a chemical ignition, and which
has:
(a) a smooth bore with a barrel less than 18 inches long;
(b) a smooth bore and an overall weapon length of less than 26 inches; or
( c) a rifled bore with a barrel less than 16 inches.
940 CMR: OFFICE OF THE ATTORNEY GENERAL
Handgun Drop Test: shall mean a test in which the handgun in question shall be:
(a) test loaded;
(b) set such that the handgun is ready to fire; and
( c)
dropped onto a solid slab of concrete from a height of one meter from each of the
following positions:
I. normal firing position,
2. upside down,
3. on grip,
4. on the muzzle,
5. on either side, and
6. on the exposed hammer or striker (or if there is no exposed hammer or striker, then
the rearmost part of the firearm).
In addition, if the handgun is designed so that its hammer or striker may be set in other
positions, the handgun in question shall be tested with the hammer or striker in each such
position (but otherwise ready to fire). Alternatively, the tester may use different handguns
of the same make and model, in similar condition, for the test of each of these
hammer/striker settings.
Handgun Performance Test: shall mean a test in which the handgun in question shall fire 600
rounds, stopping every 100 rounds to tighten any loose screws and to clean the gun (if required
by the cleaning schedule in the user manual), and as needed to refill the empty magazine or
cylinder to capacity before continuing. For any handgun that loads other than via a detachable
magazine, the tester shall also pause every 50 rounds for ten minutes. The ammunition used
shall be the type recommended by the handgun manufacturer in its user manual, or if none is
recommended, any standard ammunition of the correct caliber in new condition. A handgun
shall pass this test if it:
(a) fires the first 20 rounds without a malfunction, and
(b) fires the full 600 rounds \Vith no more than six malfunctions and without any crack or
breakage o.f an operating part of the handgun which increases the d~ger of injury to the
user.
Handgun-purvevor: shall mean any person or entity that transfers handguns to a customer
located within the Commonwealth of Massachusetts. However, handgun-purveyor shall not
include any of the aforementioned if:
(a) the person or entity transfers less than five handguns per year,
(b) the transfer in question is for the purpose of, and does, directly or indirectly, supply law
enforcement officials or United States military personnel with handguns for their official
duties,
(c) the transfer in question is for the purpose of, and does, directly or indirectly, supply
museums or educational collectors Vl'ith the handguns in question,
(d) the transfer in question is undertaken to, and does, result in the surrender ofha.'ldguns
to military or law enforcement personnel,
(e) the transfer in question is of handguns that qualify as antique firearms as defined in 18
U.S.C. § 921, or
(f) the transfer in question is of handguns that are solely designed and sold specifically for
formal target shooting competition.
Key activated trigger lock: shall mean a device that w})en locked in place by means of a key,
prevents a potential user from pulling the trigger of the handgun without first removing the
trigger lock by use of the trigger lock's key.
Load indicator: shall mean a device which plainly indicates that a cartridge is in the firing
chamber within the handgun.
Magazine safetv disconnect: shall mean a device that prevents the firing of the handgun when
the magazine is detached from the handgun.
Make and model: shall mean any group of handguns, all of which are made by a manufacturer
by the same method and according to the same design pattern and specifications.
11/14/97 (Effective 10/31/97) - corrected
940 CMR: OFFICE OF THE ATTOR.i""!EY GENERAL
16. 01 : continued
Make and Model Performance Requirements: shall mean a test in which three handguns in new
condition of the make and model being tested shall each pass the Handgun Performance Test.
Make and Model's Average Group Diameter Test Result: shall mean the arithmetic mean of the
results of three Average Group Diameter Tests, each performed on a different handgun in new
condition of the make and model being tested.
Malfunction: shall mean any failure to feed, chamber, fire, extract, or eject a round, or any
failure to accept or eject a magazine, or any other failure which prevents the handgun, without
manual intervention beyond that needed for routine firing and periodic reloading, from firing the
chambered round or moving a new round into position so that the handgun is capable of firing
the new round properly. Malfunction shall not include a misfire caused by a faulty cartridge
whose primer fails t<> detonate when properly hit by the handgun's firing mechanism.
Passive use-limitation device: shall mean a device that automatically resets itself so that an
unauthorized user cannot fire the handgun. As an example, a key activated trigger lock is not
a passive use-limitation device because it needs to be re-locked manually after its key is used
to unlock it; thus the next user can fire the handgun without having to unlock the handgun.
Prone to accidental discharge: shall mean unable to pass the following test: five handguns in
new condition of the make and model in question shall each be subjected to, and none shall
discharge.during, the Handgun Drop Test.
Readv to fir~: shall mean loaded, and in a condition such that pulling the trigger (and taking any
action that must simultaneously accompany the pulling of the trigger as part of the firing
procedure) will fire the handgun.
Serial number: shall mean the number stamped, inscribed; or placed upon a handgun by a
handgun-purveyor pursuant to M.G.L. c. 269, § 11 E.
Solenoid use-limitation device: shall mean a device which precludes, by use of a magnetically
activated relay, the firing of the handgun unless a magnet of the appropriate strength is placed
in proximity to the handle of the handgun. Such magnet may be imbedded in a ring which can
be worn on the user's gun hand.
Test loaded: shall mean loading each chamber of the handgun in question with an empty case
with a primer installed.
Transfer: shall mean sell, rent, or lease. Transfer shall not include a sale to a business entity that
is primarily a firearm wholesaler, so long as the sale, by its terms, prohibits the purchaser from
reselling the handgun to a handgun retailer or consumer in the Commonwealth.