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Montgomery County Overview
Montgomery County Code
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COMCOR - Code of Montgomery County Regulations
COMCOR Code of Montgomery County Regulations
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CHAPTER 1. GENERAL PROVISIONS - REGULATIONS
CHAPTER 1A. STRUCTURE OF COUNTY GOVERNMENT - REGULATIONS
CHAPTER 2. ADMINISTRATION - REGULATIONS
CHAPTER 2B. AGRICULTURAL LAND PRESERVATION - REGULATIONS
CHAPTER 3. AIR QUALITY CONTROL - REGULATIONS
CHAPTER 3A. ALARMS - REGULATIONS
CHAPTER 5. ANIMAL CONTROL - REGULATIONS
CHAPTER 8. BUILDINGS - REGULATIONS
CHAPTER 8A. CABLE COMMUNICATIONS - REGULATIONS
CHAPTER 10B. COMMON OWNERSHIP COMMUNITIES - REGULATIONS
CHAPTER 11. CONSUMER PROTECTION - REGULATIONS
CHAPTER 11A. CONDOMINIUMS - REGULATIONS
CHAPTER 11B. CONTRACTS AND PROCUREMENT - REGULATIONS
CHAPTER 13. DETENTION CENTERS AND REHABILITATION FACILITIES - REGULATIONS
CHAPTER 15. EATING AND DRINKING ESTABLISHMENTS - REGULATIONS
CHAPTER 16. ELECTIONS - REGULATIONS
CHAPTER 17. ELECTRICITY - REGULATIONS
CHAPTER 18A. ENERGY POLICY - REGULATIONS
CHAPTER 19. EROSION, SEDIMENT CONTROL AND STORMWATER MANAGEMENT - REGULATIONS
CHAPTER 19A. ETHICS - REGULATIONS
CHAPTER 20 FINANCE - REGULATIONS
CHAPTER 21 FIRE AND RESCUE SERVICES - REGULATIONS
CHAPTER 22. FIRE SAFETY CODE - REGULATIONS
CHAPTER 22A. FOREST CONSERVATION - TREES - REGULATIONS
CHAPTER 23A. GROUP HOMES - REGULATIONS
CHAPTER 24. HEALTH AND SANITATION - REGULATIONS
CHAPTER 24A. HISTORIC RESOURCES PRESERVATION - REGULATIONS
CHAPTER 24B. HOMEOWNERS’ ASSOCIATIONS - REGULATIONS
CHAPTER 25. HOSPITALS, SANITARIUMS, NURSING AND CARE HOMES - REGULATIONS
CHAPTER 25A. HOUSING, MODERATELY PRICED - REGULATIONS
CHAPTER 25B. HOUSING POLICY - REGULATIONS
CHAPTER 26. HOUSING AND BUILDING MAINTENANCE STANDARDS - REGULATIONS
CHAPTER 27. HUMAN RIGHTS AND CIVIL LIBERTIES - REGULATIONS
CHAPTER 27A. INDIVIDUAL WATER SUPPLY AND SEWAGE DISPOSAL FACILITIES - REGULATIONS
CHAPTER 29. LANDLORD-TENANT RELATIONS - REGULATIONS
CHAPTER 30. LICENSING AND REGULATIONS GENERALLY - REGULATIONS
CHAPTER 30C. MOTOR VEHICLE TOWING AND IMMOBILIZATION ON PRIVATE PROPERTY - REGULATIONS
CHAPTER 31. MOTOR VEHICLES AND TRAFFIC - REGULATIONS
CHAPTER 31A. MOTOR VEHICLE REPAIR AND TOWING REGISTRATION - REGULATIONS
CHAPTER 31B. NOISE CONTROL - REGULATIONS
CHAPTER 31C. NEW HOME WARRANTY AND BUILDER LICENSING - REGULATIONS
CHAPTER 33. PERSONNEL AND HUMAN RESOURCES - REGULATIONS
CHAPTER 33B. PESTICIDES - REGULATIONS
CHAPTER 35. POLICE - REGULATIONS
CHAPTER 36. POND SAFETY - REGULATIONS
CHAPTER 38A. RADIO, TELEVISION AND ELECTRICAL APPLIANCE INSTALLATION AND REPAIRS - REGULATIONS
CHAPTER 40. REAL PROPERTY - REGULATIONS
CHAPTER 41. RECREATION AND RECREATION FACILITIES - REGULATIONS
CHAPTER 41A. RENTAL ASSISTANCE - REGULATIONS
CHAPTER 42A. RIDESHARING AND TRANSPORTATION MANAGEMENT - REGULATIONS
CHAPTER 44. SCHOOLS AND CAMPS - REGULATIONS
CHAPTER 44A. SECONDHAND PERSONAL PROPERTY - REGULATIONS
CHAPTER 45. SEWERS, SEWAGE DISPOSAL AND DRAINAGE - REGULATIONS
CHAPTER 47. VENDORS - REGULATIONS
CHAPTER 48. SOLID WASTES - REGULATIONS
CHAPTER 49. STREETS AND ROADS - REGULATIONS
CHAPTER 50. SUBDIVISION OF LAND - REGULATIONS
CHAPTER 51 SWIMMING POOLS - REGULATIONS
CHAPTER 51A. TANNING FACILITIES - REGULATIONS
CHAPTER 52. TAXATION - REGULATIONS
CHAPTER 53. TAXICABS - REGULATIONS
CHAPTER 53A. TENANT DISPLACEMENT - REGULATIONS
CHAPTER 54. TRANSIENT LODGING FACILITIES - REGULATIONS
CHAPTER 55. TREE CANOPY - REGULATIONS
CHAPTER 56. URBAN RENEWAL AND COMMUNITY DEVELOPMENT - REGULATIONS
CHAPTER 56A. VIDEO GAMES - REGULATIONS
CHAPTER 57. WEAPONS - REGULATIONS
CHAPTER 59. ZONING - REGULATIONS
CHAPTER 60. SILVER SPRING, BETHESDA, WHEATON AND MONTGOMERY HILLS PARKING LOT DISTRICTS - REGULATIONS
MISCELLANEOUS MONTGOMERY COUNTY REGULATIONS
TABLE 1 Previous COMCOR Number to Current COMCOR Number
TABLE 2 Executive Regulation Number to Current COMCOR Number
TABLE 3 Executive Order Number to Current COMCOR Number
INDEX BY AGENCY
INDEX BY SUBJECT
County Attorney Opinions and Advice of Counsel
Sec. 57-1. Definitions.
   In this Chapter, the following words and phrases have the following meanings:
   3D printing process: a process of making a three-dimensional, solid object using a computer code or program, including any process in which material is joined or solidified under computer control to create a three-dimensional object.
   Child safety handgun box: A secure, lockable box designed to hold the handgun being transferred that:
   (1)   requires a key or combination to remove;
   (2)   renders the handgun inoperable when locked; and
   (3)   is approved by Executive regulation under method (2).
   Child safety handgun device: A child safety handgun lock or child safety handgun box.
   Child safety handgun lock: A device that when locked in place prevents movement of the trigger of the handgun being transferred without first removing the lock by use of a key or combination. "Child safety handgun lock" also includes any other device that can be attached to a handgun and:
   (1)   requires a key or combination to remove;
   (2)   renders the handgun inoperable when locked in place; and
   (3)   is approved by Executive regulation under method (2).
   Crime of violence: Murder, voluntary manslaughter, rape, mayhem, kidnapping, robbery, burglary, housebreaking, arson, assault with intent to murder, ravish or rob, assault with deadly weapon or assault with intent to commit any offense punishable by imprisonment for more than one (1) year.
   Firearm dealer: A person required by State or federal law to obtain a:
   (1)   regulated firearms dealer’s license; or
   (2)   temporary transfer permit to display a regulated firearm at a gun show.
   Fixed ammunition: Any ammunition composed of a projectile or projectiles, a casing, an explosive charge and a primer, all of which shall be contained as one (1) unit. Cartridges designed, made and intended to be used exclusively (i) in a device for signaling and safety purposes required or recommended by the United States Coast Guard or (ii) for industrial purposes, shall not be considered fixed ammunition. Curios or relics, as defined in regulations promulgated by the United States Secretary of the Treasury pursuant to 18 United States Code, section 921(A)(13), shall not be considered fixed ammunition.
   Fugitive from justice: Any person for whom criminal proceedings have been instituted, warrant issued or indictment presented to the grand jury, who has fled from a sheriff or other peace officer within this state, or who has fled from any state, territory, District of Columbia or possession of the United States, to avoid prosecution for crime of violence or to avoid giving testimony in any criminal proceeding involving a felony or treason.
   Gun or firearm: Any rifle, shotgun, revolver, pistol, ghost gun, undetectable gun, air gun, air rifle or any similar mechanism by whatever name known which is designed to expel a projectile through a gun barrel by the action of any explosive, gas, compressed air, spring or elastic.
   (1)   The term “antique firearm” means (a) any firearm (including any firearm with a matchlock, flintlock, percussion cap, or similar type of ignition system) manufactured in or before 1898; and (b) any replica of any firearm described in subparagraph (a) if such replica (i) is not designed or redesigned or using rimfire or conventional centerfire fixed ammunition, or (ii) uses rimfire or conventional centerfire fixed ammunition which is no longer manufactured in the United States and which is not readily available in the ordinary channels of commercial trade.
   (2)   “Ghost gun” means a firearm, including an unfinished frame or receiver, that lacks a unique serial number engraved or cased in metal alloy on the frame or receiver by a licensed manufacturer, maker or importer under federal law or markings in accordance with 27 C.F.R. § 479.102. It does not include a firearm that has been rendered permanently inoperable, or a firearm that is not required to have a serial number in accordance with the Federal Gun Control Act of 1968.
   (3)   “Handgun” means any pistol, revolver or other firearm capable of being concealed on the person, including a short-barreled shotgun and a short-barreled rifle as these terms are defined below. “Handgun” does not include a shotgun, rifle, or antique firearm.
   (4)   “Rifle” means a weapon designed or redesigned, made or remade, and intended to be fired from the shoulder and designed or redesigned and made or remade to use the energy of the explosive in a fixed metallic cartridge to fire only a single projectile through a rifled bore for each single pull of the trigger.
   (5)   The term “short-barreled rifle” means a rifle having one (1) or more barrels less than sixteen (16) inches in length and any weapon made from a rifle (whether by alternation, modification or otherwise) if such weapon, as modified, has an overall length of less than twenty-six (26) inches.
   (6)   The term “short-barreled shotgun” means a shotgun having one (1) or more barrels less than eighteen (18) inches in length and any weapon made from a shotgun (whether by alteration, modification or otherwise) if such weapon as modified has an overall length of less than twenty-six (26) inches.
   (7)   “Shotgun” means a weapon designed or redesigned, made or remade, and intended to be fired from the shoulder and designed or redesigned and made or remade to use the energy of the explosive in a fixed shotgun shell to fire through a smooth bore either a number of ball shot or a single projectile for each single pull of the trigger.
   (8)   “Undetectable gun” means:
      (A)   a firearm that, after the removal of all its parts other than a major component, is not detectable by walk-through metal detectors commonly used at airports or other public buildings;
      (B)   a major component that, if subjected to inspection by the types of detection devices commonly used at airports or other public buildings for security screening, would not generate an image that accurately depicts the shape of the component; or
      (C)   a firearm manufactured wholly of plastic, fiberglass, or through a 3D printing process.
   Gun shop: An establishment where a handgun, rifle, or shotgun, or ammunition or major component of these guns is sold or transferred. "Gun shop" does not include an area of an establishment that is separated by a secure, physical barrier from all areas where any of these items is located.
   Gun show: Any organized gathering where a gun is displayed for sale.
   Major component means, with respect to a firearm:
   (1)   the slide or cylinder or the frame or receiver; and
   (2)   in the case of a rifle or shotgun, the barrel.
   Minor: An individual younger than 18 years old.
   Pistol or revolver: Any gun with a barrel less than twelve (12) inches in length that uses fixed ammunition.
   Place of public assembly: A “place of public assembly” is a place where the public may assemble, whether the place is publicly or privately owned, including a park; place of worship; school; library; recreational facility; hospital; community health center; long-term facility; or multipurpose exhibition facility, such as a fairgrounds or conference center. A place of public assembly includes all property associated with the place, such as a parking lot or grounds of a building.
   Record plat means a subdivision plat recorded in the County’s land records.
   Sell or purchase: Such terms and the various derivatives of such words shall be construed to include letting on hire, giving, lending, borrowing or otherwise transferring.
   Sporting use: "Sporting use" of a firearm and ammunition means hunting or target shooting in compliance with all federal, State, and local laws. Sporting use includes:
   (a)   participation in a managed hunt sponsored by a government agency; and
   (b)   the sale or other transfer of ammunition by a sporting club for immediate, on-site use at the club.
   Tax assessment record means the information maintained by the State Department of Assessments and Taxation in its Real Property Database on each parcel of real property located in the County, including the tax map for each parcel.
   Urban area: That part of the County within the following boundaries: Beginning at a point where the Maryland/District of Columbia boundary line in the County intersects with the Maryland/Virginia boundary line on the southwest side of the Potomac River; running then northwest along the Maryland/Virginia boundary line to the emptying of Watts Branch into the Potomac River; then northwest along the northeast side of the Potomac River to the emptying of Seneca Creek into the Potomac River; then north along Seneca Creek to Route 112 (Seneca Road); then east along Route 112 to Route 28 (Darnestown Road); then northwest along Route 28 to Route 118 (Darnestown-Germantown Road); then north along Route 118 to Route 117 (Clopper Road); then northwest along Route 117 to Little Seneca Creek; then northeast along Little Seneca Creek to Black Hill Regional Park; then along the eastern boundary of Black Hill Regional Park to the Park’s southernmost intersection with I-270; then northwest along I-270 to Little Seneca Creek; then north along Little Seneca Creek to West Old Baltimore Road; then east along West Old Baltimore Road to Route 355 (Frederick Road); then south along Route 355 to Brink Road; then southeast on Brink Road to the Town of Laytonsville; then along the northern boundary of the Town of Laytonsville to Route 420 (Sundown Road); then east along Route 420 to Route 650 (Damascus Road); then southeast along Route 650 to Route 97 (Georgia Avenue); then south along Route 97 to Brighton Dam Road; then northeast along Brighton Dam Road to Route 650 (New Hampshire Avenue); then south along Route 650 to Route 108; then east along Route 108 to the Potomac Electric Power Company transmission line property; then southeast along the east side of the Potomac Electric Power Company right-of-way to Batson Road; then following along the southern boundary of the Washington Suburban Sanitary Commission property to Kruhm Road; then southeast along Kruhm Road to the Potomac Electric Power Company right-of-way; then southeast along the east side of the Potomac Electric Power Company right-of-way to Route 198; then east along Route 198 to the Prince George’s County/Montgomery County boundary line; then southwest along the Montgomery County/Prince George’s County boundary line to the Montgomery County/District of Columbia boundary line; then along the Montgomery County/District of Columbia boundary line to the beginning point.
   Vehicle: Any motor vehicle, as defined in the Transportation Article of the Annotated Code of Maryland, trains, aircraft and vessels. (1981 L.M.C., ch. 42, § 1; 1983 L.M.C., ch. 50, § 1; CY 1991 L.M.C., ch. 21, § 1; 1993 L.M.C., ch. 50, § 1; 1997 L.M.C., ch. 3, § 1; 1997 L.M.C., ch. 14, §1; 1997 L.M.C., ch. 16; 2001 L.M.C., ch. 11, § 1; 2007 L.M.C., ch. 21, § 1; 2018 L.M.C., ch. 34, § 1; 2021 L.M.C., ch. 7, §1.)