From The Vault
The Regulator Duster is a piece of clothing in Fallout 3.
It can be repaired with other Regulator Dusters and provides a damage resistance of 10 as well as a bonus of 1 to Charisma and a bonus of 5 to Small Guns.
One is given at 100% condition by Sonora Cruz if you join her group, the Regulators. To join the Regulators, you must have the Lawbringer perk which is available starting at level 14. Taking the perk will add the location of Regulator HQ to your Pip Boys world map.
If you have negative karma, Regulators will occasionally show up to kill you for a bounty, at which point you can obtain a Regulator Duster by killing them and looting their corpses.
If you have the Lawbringer perk and you reverse-pickpocket the un-named Regulators inside the Regulator HQ they will have a new duster in 72 hours.
The Regulator Duster is cosmetically identical to Vance's Longcoat Outfit, both of which are identical to the Sheriff's Duster, though they lack the sheriff's badge.
The Regulator Duster appears only in Fallout 3.
||Enclave Hellfire Armor · Enclave Power Armor · Power Armor (Ashur's Power Armor, Tribal Power Armor, Linden's Outcast Power Armor, Prototype Medic Power Armor) · T-51b Power Armor (Winterized T-51b Power Armor) · Tesla Armor
||Combat Armor · Ranger Battle Armor · Security Uniforms · Talon Combat Armor (Lag-Bolt's Combat Armor) · Winterized Combat Armor (Winterized Medic Armor)
||Leather Armor (Wanderer's Leather Armor) · Merc Outfits · Metal Armor (Gamma Shield Armor, Samurai Armor) · Raider Armors · Raider Commando Armor (Leather Rebel) · Raider Iconoclast Armor · Raider Ordinance Armor (Bombshell Armor) · Raider Paingiver Armor · Raider Throwdown Armor (Metal Master Armor) · Recon Armor (Chinese Stealth Armor)
||Advanced Radiation Suit · All-Nighter Nightwear · AntAgonizer's Costume · (Dirty) Chinese Jumpsuit · Colonel Autumn's Uniform · Doctor Li's Outfit · Elder Lyons' Robe · Enclave Officer Uniform · Environment Suit · Eulogy Jones' Suit · General Chase's Overcoat · Grifter's Fit · Kid's Outfits (Blast Off Pajamas, Kid's Cave Rat Outfit, Mayor MacCready's Outfit)· Mechanist's Costume · Mysterious Stranger Outfit · Naughty Nightwear · Neural Interface Suit · Oasis Robes (Maple's Garb) · Paulson's Outfit · Pre-War Outfits · Pre-war Businesswear · Radiation Suit · Repairman Jumpsuit (Red's Jumpsuit) · Regulator Duster (Sheriff's Duster) · Roving Trader Outfit · Scientist Outfits (Lab Coat, Lesko's Lab Coat, The Surgeon's Lab Coat) · Scribe Robes · Sexy Sleepwear · Slave Outfits (Laborer Outfit) · Spacesuit · Tenpenny's Suit · Tribal Garb · Vance's Longcoat Outfit · Wasteland Outfits · Wasteland Surgeon Outfits · Winterized Chinese Jumpsuit (General Jingwei's Uniform) · Workman's Coveralls
||Armored Vault Suit · Tunnel Snake Outfit · Vault Jumpsuits (Child's Vault 101 Jumpsuit, Vault 77 Jumpsuit) · Vault 101 Utility Jumpsuit (Dad's Wasteland Outfit, Modified Utility Jumpsuit) · Vault Lab Uniform · Vault 101 Security Armor
||Bandana · Boogeyman's Hood · Button's Wig · Chinese Commando Hat (Hat of the People) · Composite Recon Helmet · Confederate Hat · Eyebot Helmet (Crow's Eyebot Helmet) · Head Wrap (Three Dog's Head Wrap) · Hockey Mask (Ledoux's Hockey Mask) · Lincoln's Hat · Motorcycle Helmet · Party Hat · Pint-Sized Slasher Mask · Police Hat · Poplar's Hood · Shady Hat · Supervisor Helmet (Filtration Helmet) · Takoma Park Little Leaguer Cap · Torcher's Mask · Welder's Mask · Wig
||Biker Goggles · Ghoul Mask · Glasses (Cryptochromatic Spectacles, Desmond's Eyeglasses, Lag-Bolt's Shades, Lucky Shades, Three Dog's Glasses)