Rules and Regulations Library

Titlesort ascending Description Category Document Type
National-Jan2008-Open Letter-Submitting Payments to ATF (88 KB)
The purpose of this letter is to provide notification that the ATF will be switching to electronic funds processing (ECP) for all payments received by the agency.
Firearms Open Letter
National-Jan2005-Open Letter-Fabrique Nationale FR 5.7 Pistol (530 KB)
The letter provides information in response to numerous questions that ATF has received regarding the capabilities of the 5.7 X 28mm cartridge and the FR 5.7 (Fabrique Nationale) pistol.
Firearms Open Letter
National-Feb2010-Open Letter-Locking Requirements for Portable Type-5 Magazines (56 KB)
The purpose of this memorandum is in response to inquiries regarding ATF's determination on the locking requirements for portable Type-5 magazines commonly referred to as ocean freight containers, sea containers, or ISO containers.
Explosives Open Letter
National-Apr2013-Open Letter-USBDC Response to IME Request for Information (169 KB) This letter is a response by the U.S. Bomb Data Center (USBDC) to the Institute of Makers of Explosives (IME) request for information regarding the use of commercial explosives utilized in bombing events in the United States. Explosives Open Letter
National-Apr2012-Open Letter-Unmarked Plastic Explosives (116 KB)
The purpose of this letter is to remind all Federal law enforcement agencies and military components of certain provisions of the Antiterrorism and Effective Death Penalty Act of 1996 pertaining to plastic explosives that do not contain a detection agent.
Explosives Open Letter
National-Apr2011-Open Letter-Submitting ATF Form 4 or Form 5 (94 KB)
The purpose of this letter is to provide guidance to any person submitting ATF Form 4, Application for Tax Paid Transfer and Registration of a Firearm, or with ATF Form 5, Application for Tax Exempt Transfer and Registration of a Firearm.
Firearms Open Letter
Montana-Oct1998-Open Letter-Permanent Provisions of the Brady Law (776 KB) The purpose of this letter is to advise Federal firearms licensees in Montana of their responsibilities under the permanent provisions of the Brady law. Firearms Open Letter
Montana-July2009-Open Letter-Guidance Regarding Montana Firearms Freedom Act (73 KB)
The purpose of this letter is to provide guidance on your obligations as a Federal firearms licensee (FFL) and the passage of the Montana Firearms Freedom Act.
Firearms Open Letter
Missouri-Oct1998-Open Letter-Permanent Provisions of the Brady Law (817 KB) The purpose of this letter is to advise Federal firearms licensees in Missouri of their responsibilities under the permanent provisions of the Brady law. Firearms Open Letter
Mississippi-Oct1998-Open Letter-Permanent Provisions of the Brady Law (326 KB) The purpose of this letter is to advise Federal firearms licensees in Mississippi of their responsibilities under the permanent provisions of the Brady law. Firearms Open Letter
Minnesota-Oct2019-NICS_background_Check_Prior_to_Firearm_Transfer_to_Non-Licensee_with_Valid_Minnesota_Permit_to_Carry.pdf (436 KB)

All Minnesota Federal Firearms Licensees are required to conduct a NICS background check prior to the transfer of a firearm to a non-licensee even if that person presents a valid Minnesota Permit to Carry.

Firearms Open Letter
Minnesota-Oct1998-Open Letter-Permanent Provisions of the Brady Law (45 KB) The purpose of this letter is to advise Federal firearms licensees in Minnesota of their responsibilities under the permanent provisions of the Brady law. Firearms Open Letter
Michigan-Oct1998-Open Letter-Permanent Provisions of the Brady Law (633 KB) The purpose of this letter is to advise Federal firearms licensees in Michigan of their responsibilities under the permanent provisions of the Brady law. Firearms Open Letter
Michigan-Mar2006-Open Letter-Michigan’s Concealed Pistol Licenses (CPLs) Qualify as Alternative to NICS Check (38 KB)
The purpose of this letter is to advise you of an important change to the procedure you may follow beginning March 24, 2006. Michigan’s Concealed Pistol Licenses (CPLs) issued on or after November 22, 2005 will qualify as an alternative to a NICS check. The 1998 Open Letter to Michigan Federal Firearms Licensees (FFLs) is superseded in regards to the information on “Alternatives to a NICS check.”
Firearms Open Letter
Michigan-Mar2004-Open Letter-Michigan Concealed Pistol Permit Not an Alternative to NICS (75 KB)

This open letter provides guidance regarding the use of a State of Michigan issued Concealed Pistol Permit (CPP, but commonly referred to as a CCW) and a License to Purchase a Pistol as alternatives to NICS background check.

 

Firearms Open Letter
Michigan-Mar2004-Open Letter-Curbing the Flow of Illegal Crime Guns (75 KB)
The purpose of this letter is to advise you of ATF’s continued commitment and strong partnership with the Michigan firearms industry and to request your assistance in combating the illegal traffic and use of firearms.
Firearms Open Letter
Massachusetts-Oct2003-Open Letter-Massachusetts License to Carry No Longer an Alternative to NICS Check (79 KB)
This open letter is to inform all Massachusetts Federal firearms licensees that as of October 21, 2003 all previously grandfathered Massachusetts licenses to carry will have expired. 
Firearms Open Letter
Massachusetts-Oct1998-Open Letter-Permanent Provisions of the Brady Law (45 KB) The purpose of this letter is to advise Federal firearms licensees in Massachusetts of their responsibilities under the permanent provisions of the Brady law. Firearms Open Letter
Maryland-Oct1998-Open Letter-Permanent Provisions of the Brady Law (1008 KB) The purpose of this letter is to advise Federal firearms licensees in Maryland of their responsibilities under the permanent provisions of the Brady law. Firearms Open Letter
Maine-Oct1998-Open Letter-Permanent Provisions of the Brady Law (45 KB) The purpose of this letter is to advise Federal firearms licensees in Maine of their responsibilities under the permanent provisions of the Brady law. Firearms Open Letter
Machine Guns, Destructive Devices, and Certain Other Firearms, Amended Definition of "Pistol" (2003R-33P) (60 KB)

The Department of Justice is proposing to amend the regulations relating to machine guns, destructive devices, and certain other firearms regulated under the National Firearms Act (NFA) for the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF) to clarify the definition of the term ‘‘pistol’’ and to define more clearly exceptions to the ‘‘pistol’’ definition.

Firearms Rulemaking
Louisiana-Oct1998-Open Letter-Permanent Provisions of the Brady Law (474 KB) The purpose of this letter is to advise Federal firearms licensees in Louisiana of their responsibilities under the permanent provisions of the Brady law. Firearms Open Letter
Louisiana-Apr2015-Open Letter-Louisiana's Concealed Handgun Permit Qualifies as Alternative to to NICS Check (473 KB)
The purpose of this open letter is to advise all Louisiana Federal firearms licensees that Louisiana's concealed handgun permit has been determined to qualify as an alternative to the National Instant Criminal Background Check System (NICS) check. 
Firearms Open Letter
List of Explosives Materials - 2014 (55 KB)

Notice of List of Explosive Materials

Explosives General Notice
List of Explosive Materials - 2015 (174 KB) Notice of List of Explosive Materials Explosives General Notice
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