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Type Record · As of May 3, 2026

DIAMOND AIRCRAFT DA 42 NG

Fixed Wing Multi Engine · AUSTRO E4 SERIES

Registered

140

Year Range

2005–2026

NTSB Events

27

Airworthiness Directives

0

01 /  Distribution

Where the fleet lives and was built

Counts of currently-registered DIAMOND AIRCRAFT DA 42 NG aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

By State (top 10)

  • FL 26.8% 37
  • IN 10.9% 15
  • AZ 10.9% 15
  • CA 5.8% 8
  • TX 5.1% 7
  • NY 4.3% 6
  • LA 4.3% 6
  • DE 3.6% 5
  • NC 2.9% 4
  • OK 2.9% 4

+19 more states

By Decade of Manufacture

  • 2000s 11.4% 16
  • 2010s 31.4% 44
  • 2020s 47.1% 66
  • Unknown 10.0% 14

02 /  NTSB Records

Events involving DIAMOND AIRCRAFT DA 42 NG aircraft

27 event(s) on file. Showing the most recent 25 · 2 more available on NTSB CAROL.

03 /  Airworthiness Directives

FAA directives applicable to DIAMOND AIRCRAFT DA 42 NG

No matching airworthiness directives are on file for this make and model in the Federal Register.

04 /  Type Certificate Data Sheets

FAA TCDS for DIAMOND AIRCRAFT DA 42 NG

The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.

  • A57CE Historical Rev 17 · 12/22/2014

    Diamond Aircraft Industries GmbH

    Models: DA 42, DA-42-NG, DA-62, DA-42-M-NG + 4 more

05 /  Special Airworthiness Information Bulletins

Advisories applicable to DIAMOND AIRCRAFT DA 42 NG

2 SAIBs on file. SAIBs are FAA advisory notices — not mandatory like ADs, but worth reviewing for service bulletins and emerging issues.

  • 09/03/2008

    SAIB CE-08-45

    Electrical - Airplane Flight Manual- Lightning Strike Procedures- Amendment

  • 06/19/2007

    SAIB CE-07-38

    Airplane Flight Manual Clarification

06 /  Supplemental Type Certificates

Modifications approved for DIAMOND AIRCRAFT DA 42 NG

67 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.

  • 04/01/2025

    STC SA04046CH Page 1

    Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500)

    Acron Aviation Inc.

  • 08/27/2024

    STC SA04837NY

    Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights

    AeroLED's Holdings, LLC

  • 12/12/2022

    STC SA04046CH Page 1

    Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500)

    L3Harris Aviation Products Inc.

  • 03/30/2022

    STC SA02444AK (PAGE 1)

    Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed

    ADS-B Technologies LLC

  • 11/23/2021

    STC SA04681NY

    Installation of MT-Propeller Entwicklung GmbH model MTV-6-( )-C-F/CF190-69( ) 3-blade, constant\nspeed, full feathering propellers and spinners

    MT- Propeller Entwicklung GmbH

  • 09/01/2021

    STC SA11174SC PAGE 1

    Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems

    Honeywell International Inc (Bendix King)

  • 06/09/2021

    STC SA00401BO (PAGE 1)

    Installation of a SkyTrax100B UAT receiver

    Avidyne Corporation

  • 06/19/2019

    STC SA00344BO PAGE 1

    Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights.

    Whelen Aerospace Technologies

  • 04/23/2019

    STC SA00401BO (PAGE 1)

    Installation of a SkyTrax100B UAT receiver

    Avidyne Corporation

  • 02/06/2019

    STC SA01714WI (PAGE 2)

    Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R wit…

    Garmin International Inc

  • 09/11/2018

    STC SA04165NY (Page 2)

    Installation of Latitude Technologies Skynode S200 Satcom system

    Latitude Technologies Corporation

  • 06/11/2018

    STC SA02013CH

    Installation of Avidyne Corporation Traffic Advisory System (TAS)

    Avidyne Corporation

  • 05/18/2018

    STC SA01828SE

    Installation of J.P. Instruments (JPI) EDM-960 Primary Engine Data Management System

    J. P. Instruments

  • 10/30/2017

    STC SA02212AK (PG 1)

    Replacement of existing landing and/or taxi light reflector and bulbs with high intensity discharge (HID) lighting systems

    Seaplanes North LLC

  • 05/11/2017

    STC SA04046CH Page 1

    Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500)

    L-3 Communications Avionics Systems Inc.

  • 02/24/2017

    STC SA02444AK (Page 1)

    Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed

    ADS-B Technologies, LLC

  • 12/21/2016

    STC SA03804NY

    Engine Refit: The presently installed versions of the TAE 125-01 or TAE 125-02-99 engine are replaced by the TAE 125-02-114 engine. This STC includes two propeller configurations: …

    Crosby Aviation (Jersey) Ltd.

  • 11/17/2016

    STC SA02153LA-D Page 1

    Installation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) System

    Garmin International Inc

  • 08/11/2016

    STC SA00344BO Page 1

    Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights.

    Whelen Engineering Co Inc

  • 07/21/2016

    STC SA01714WI (Page 2)

    Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R wit…

    Garmin International Inc

  • 05/16/2016

    STC SA01828SE

    Installation of J.P. Instruments (JPI) EDM-960 Primary Engine Data Management System

    J. P. Instruments

  • 05/16/2016

    STC SA03701NY

    Installation of RF-006(A) Main Wheel and RA-002(B) Nose Wheel with EA-003.7N(A) Brake System

    Beringer Aero

  • 05/04/2016

    STC SA02444AK (Page 1)

    Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed

    ADS-B Technologies LLC

  • 03/15/2016

    STC SA11172SC

    Installation of an ADS600-B Automatic Dependent Surveillance-Broadcast (ADS-B) Universal Access Transceiver (UAT) and Global Positioning System (GPS) antenna

    NavWorx Inc

  • 03/08/2016

    STC SA01714WI (Page 2)

    Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R wit…

    Garmin International Inc

  • 01/19/2016

    STC SA04046CH Page 1

    Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500)

    L-3 Communications Avionics Systems Inc.

  • 12/30/2015

    STC SA04046CH Page 1

    Installation of L-3 Communication Avionics Systems ESI-500 Standby Instrument System

    Dan Buzz & Associates LLC

  • 11/06/2015

    STC SA02153LA-D Page 1

    Installation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) System

    Garmin International Inc

  • 10/14/2015

    STC SA01969SE

    Installation of a Mid-Continent MD302 Standby Attitude Module

    Mid-Continent Instruments and Avionics

  • 09/23/2015

    STC SA00344BO Page 1

    Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights.

    Whelen Engineering Co Inc

+ 37 more STCs on file

07 /  PMA replacement parts

FAA-approved replacement parts for DIAMOND AIRCRAFT DA 42 NG

33 parts on file from the FAA Parts Manufacturer Approval database. Each is a non-OEM part the FAA has authorized for use as a replacement on this aircraft type.

  • 510548-405#https://drs.faa.gov/browse/excelExternalWindow/28A3A8AC3ABA9E0986257F4500644226.0001##

    Aftermarket Installation Kit, Diamond

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510548-407#https://drs.faa.gov/browse/excelExternalWindow/9854EABBB2DC409486257F4500644275.0001##

    Aftermarket Installation Kit, Diamond

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-209-XXXX#https://drs.faa.gov/browse/excelExternalWindow/0CF3487A3CBBE1ED86257F450064412F.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-203-XXXX#https://drs.faa.gov/browse/excelExternalWindow/26075A30B41715B186257F4500643F4F.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-210-XXXX#https://drs.faa.gov/browse/excelExternalWindow/C9A5A49A9E440D4286257F4500644185.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-205-XXXX#https://drs.faa.gov/browse/excelExternalWindow/08F14FD43284D80986257F4500643FEE.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-208-XXXX#https://drs.faa.gov/browse/excelExternalWindow/54513681AA48952B86257F45006440E0.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-202-XXXX#https://drs.faa.gov/browse/excelExternalWindow/E6E07CBBF7961E4486257F4500643EFE.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-207-XXXX#https://drs.faa.gov/browse/excelExternalWindow/EDC1C8D7685FF1D186257F4500644090.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-201-XXXX#https://drs.faa.gov/browse/excelExternalWindow/834BF2BEFA0B17BF86257F4500643EAE.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-206-XXXX#https://drs.faa.gov/browse/excelExternalWindow/86025C25D59798F586257F4500644040.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-204-XXXX#https://drs.faa.gov/browse/excelExternalWindow/A872CA5B5FB477FE86257F4500643F9E.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • C-99701-1#https://drs.faa.gov/browse/excelExternalWindow/18AA150E583FCC5F86257AD70066A506.0001##

    Lift Detector

    Safe Flight Instrument Corp replaces C-99701-1

    PMA holder →
  • PM-2032#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID101522758520251118173821.0001##

    Horizontal Stabilizer Tip Mask Set

    PM Research, Inc. replaces Modification Article

    PMA holder →
  • PM-2034#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149329410820251118173822.0001##

    Tail Bullet Mask

    PM Research, Inc. replaces Modification Article

    PMA holder →
  • PM-2030#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159773412620251118173821.0001##

    Radome Mask

    PM Research, Inc. replaces Modification Article

    PMA holder →
  • #https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199207886520220706160137.0001##

    LoPresti Speed Merchants

    PMA holder →
  • 510445-201-XXXX#https://drs.faa.gov/browse/excelExternalWindow/E773F340F762697A86257A41004D21AE.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-207-XXXX#https://drs.faa.gov/browse/excelExternalWindow/8EDFA69A98DD98B686257A41004D239F.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-205-XXXX#https://drs.faa.gov/browse/excelExternalWindow/95E786C0E8932D9686257A41004D22FB.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-203-XXXX#https://drs.faa.gov/browse/excelExternalWindow/A1069C783DE7C07486257A41004D2258.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-206-XXXX#https://drs.faa.gov/browse/excelExternalWindow/4EA28A6D8939241886257A41004D234E.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-208-XXXX#https://drs.faa.gov/browse/excelExternalWindow/B29167C34843F1FA86257A41004D23F0.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-204-XXXX#https://drs.faa.gov/browse/excelExternalWindow/E5B3D2098EFFB8A686257A41004D22A8.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 510445-202-XXXX#https://drs.faa.gov/browse/excelExternalWindow/F648D28EA422CACB86257A41004D2202.0001##

    Inflatable Kit Assy

    AmSafe Inc replaces Modification Part

    PMA holder →
  • 1024126#https://drs.faa.gov/browse/excelExternalWindow/B22F9CA0E41D810386257EF2007479D6.0001##

    Electric Vapor Cycle System

    Aircenter Inc replaces 1024126

    PMA holder →
  • MA8001#https://drs.faa.gov/browse/excelExternalWindow/3699C3ECDE3EF85A86257A1700523906.0001##

    Limitations Placard

    Micro Aerodynamics Inc replaces Modification Part

    PMA holder →
  • Type #1202 MA1202#https://drs.faa.gov/browse/excelExternalWindow/07A42C838F6D31F286257A17005238AA.0001##

    Vortex Generator

    Micro Aerodynamics Inc replaces Modification Part

    PMA holder →
  • Type #1002 MA1002#https://drs.faa.gov/browse/excelExternalWindow/5C4B47CE75E24B9E86257A170052384D.0001##

    Vortex Generator

    Micro Aerodynamics Inc replaces Modification Part

    PMA holder →
  • Type #1001 MA1001#https://drs.faa.gov/browse/excelExternalWindow/3F8DDF9E5DC92FB586257A17005237F1.0001##

    Vortex Generator

    Micro Aerodynamics Inc replaces Modification Part

    PMA holder →
  • TAU03323#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190915905320240221143038.0001##

    AV/Cabin Heat Kit

    Hartzell Propeller Inc replaces Modification Article

    PMA holder →
  • “#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID218116627120210617133706.0001##

    Tanis Aircraft Products replaces “

    PMA holder →
  • 18002-B#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID102112115520240103194947.0001##

    Pump-Motor Assembly

    Weldon Pump replaces Diamond Aircraft Industries Inc. and Diamond Aircraft Industries GmbH, P/N 5100-00-9

    PMA holder →

09 /  Equivalent Level of Safety findings

ELOS findings issued for DIAMOND AIRCRAFT DA 42 NG

9 ELOS findings on file. The FAA issues an ELOS when an applicant proposes an alternative means that achieves the same safety outcome as a literal regulation — a standing record of which certification deviations the agency has approved for this model series.

  • ACE-10-07

    INFORMATION: Equivalent Level of Safety (ELOS) Finding for Diamond Aircraft Industries, Models DA 42 NG and DA62 Airplanes; Fuel Pumps, FAA Project Numbers: CE1704SN, TD0326CE-A, and AT0755CE-A

    § 23.991

    12/23/2015 →
  • ST00148NY-D

    INFORMATION: Equivalent Level of Safety (ELOS) Finding for Diamond Aircraft Industries, DA42, DA42NG, DA42M-NG, and DA62 Airplanes; Liquid Cooling Installation, FAA Project Numbers CE1704SN,TD0326CE-A, and AT0755CE-A.

    § 23.1061

    12/16/2015 →
  • ACE-05-07

    INFORMATION: Equivalent Level of Safety (ELOS) Finding for Diamond Aircraft Industries, DA42, DA42NG, DA42M-NG, and DA62 Airplanes; Liquid Cooling Installation, FAA Project Numbers CE1704SN,TD0326CE-A, and AT0755CE-A.

    § 23.1061

    12/16/2015 →
  • ACE-09-14A

    Extension of ELOS

    § 23.207

    03/14/2014 →
  • ACE-05-06B

    Cockpit controls

    § 23.777

    02/24/2010 →
  • ACE-05-07B

    Liquid Cooling

    § 23.1061, 23.1063

    02/22/2010 →
  • ACE-09-14

    Engine modification

    § 23.207

    08/19/2009 →
  • ACE-05-05

    Ignition Switches

    § 23.1145

    06/22/2005 →
  • ACE-05-06

    Motion and effect of Cockpit controls

    § 23.779

    06/22/2005 →

05 /  Aircraft of this type

All 140 registered N-numbers

Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged have NTSB events on file. Tails seeded with full TallyAero pages link directly.

140 of 140
N-number St Year NTSB FAA
N101SW FL 2016 · Look up ↗
N107NG WI 2015 · Look up ↗
N108NG FL 2015 · Look up ↗
N112NG WA · Look up ↗
N126NG NV 2015 · Look up ↗
N135DA CA · Look up ↗
N141DA NH 2016 · Look up ↗
N142GS IN 2012 · Look up ↗
N142NG NC 2006 · Look up ↗
N147TS ME 2006 · Look up ↗
N151MA MA 2005 · Look up ↗
N153TS NY 2006 · Look up ↗
N168PF AZ 2022 · Look up ↗
N181CW DE 2014 Look up ↗
N1836T TX 2014 Look up ↗
N1926E AZ 2025 · Look up ↗
N1PP TX 2016 · Look up ↗
N227SK 2026 · Look up ↗
N230PA MN 2023 · Look up ↗
N233AV AZ 2023 · Look up ↗
N234LM 2025 · Look up ↗
N242BL NY 2021 · Look up ↗
N246CF NC 2014 · Look up ↗
N257LA NV 2023 · Look up ↗
N25HS TX 2013 · Look up ↗
N265PS FL 2025 · Look up ↗
N26ZT TX 2021 · Look up ↗
N272MB IL 2008 · Look up ↗
N294DM WI · Look up ↗
N295RA AZ 2016 · Look up ↗
N296SK IL 2025 · Look up ↗
N302ER FL 2023 · Look up ↗
N303SW FL 2016 · Look up ↗
N304SW FL 2016 · Look up ↗
N305ER FL 2016 · Look up ↗
N306ER FL 2016 Look up ↗
N308ER FL 2016 · Look up ↗
N309ER FL 2016 · Look up ↗
N311ER FL 2016 Look up ↗
N311LH KS 2005 Look up ↗
N312ER FL 2016 · Look up ↗
N313ER FL 2024 · Look up ↗
N314ER FL 2024 · Look up ↗
N3150A OK · Look up ↗
N315XA AZ 2025 · Look up ↗
N316ER FL · Look up ↗
N318ER FL 2024 · Look up ↗
N319ER FL 2024 Look up ↗
N320AV AZ 2023 · Look up ↗
N320ER FL 2024 · Look up ↗
N322ER FL 2024 · Look up ↗
N323ER FL 2024 · Look up ↗
N324ER FL 2024 · Look up ↗
N327ER FL 2024 · Look up ↗
N328ER FL 2024 · Look up ↗
N329ER FL 2024 · Look up ↗
N342ND FL 2005 · Look up ↗
N342T CO 2007 Look up ↗
N374AW AP 2024 · Look up ↗
N37TL LA 2021 · Look up ↗
N385L IN 2023 Look up ↗
N386L IN 2023 · Look up ↗
N387L IN 2024 · Look up ↗
N388L IN 2024 · Look up ↗
N389L IN 2024 · Look up ↗
N390L IN 2024 · Look up ↗
N391L IN 2024 · Look up ↗
N392L IN · Look up ↗
N399SK IL 2025 · Look up ↗
N39AG LA 2025 Look up ↗
N421BL PA 2020 Look up ↗
N421MQ NY 2021 Look up ↗
N422BL FL 2018 · Look up ↗
N426YP DE 2017 · Look up ↗
N42KH LA 2022 · Look up ↗
N42MV DE 2014 · Look up ↗
N42NG WY 2010 · Look up ↗
N43AS TX 2025 · Look up ↗
N43WF DE 2006 · Look up ↗
N441SA NJ 2023 · Look up ↗
N442AD NY 2007 · Look up ↗
N443J PA 2024 · Look up ↗
N458L IN 2022 · Look up ↗
N45AS TX 2022 · Look up ↗
N481MR FL 2014 · Look up ↗
N485SV NC 2019 · Look up ↗
N505FM NY 2007 · Look up ↗
N508PA FL 2007 Look up ↗
N516LA CA 2025 · Look up ↗
N518R FL · Look up ↗
N521QA NJ 2018 · Look up ↗
N542BL FL 2023 · Look up ↗
N5566A OK 2023 · Look up ↗
N566CB OK · Look up ↗
N574PA VA 2022 Look up ↗
N5888 WY 2023 · Look up ↗
N593ER NM 2011 · Look up ↗
N596ER FL 2019 · Look up ↗
N597ER FL 2020 · Look up ↗
N598ER FL 2020 · Look up ↗
N5999 WY 2023 Look up ↗
N599ER FL 2020 · Look up ↗
N607PA FL 2007 Look up ↗
N61EP AZ 2014 · Look up ↗
N621ZC MT 2012 · Look up ↗
N62DL WA 2018 · Look up ↗
N63AG LA 2025 · Look up ↗
N63GH CA 2015 · Look up ↗
N649DA CA 2018 · Look up ↗
N694ER AZ 2024 · Look up ↗
N705JP ND 2017 Look up ↗
N725SA FL 2010 · Look up ↗
N729PA CO 2008 Look up ↗
N730PC FL 2025 · Look up ↗
N737AV AZ 2023 Look up ↗
N738LA NC 2024 · Look up ↗
N757MN LA 2023 · Look up ↗
N767AV AZ 2023 · Look up ↗
N787AM NY Look up ↗
N787AV AZ 2023 · Look up ↗
N790ER AZ · Look up ↗
N791ER AZ · Look up ↗
N792ER AZ · Look up ↗
N793ER AZ 2022 · Look up ↗
N805PA CO 2008 Look up ↗
N821BR CA 2013 · Look up ↗
N822BR CA 2025 · Look up ↗
N823BR CA 2025 · Look up ↗
N829TD OK · Look up ↗
N844RH LA 2022 · Look up ↗
N859LF OH 2016 · Look up ↗
N86RK DE Look up ↗
N880L IN 2018 · Look up ↗
N881L IN 2018 · Look up ↗
N882L IN 2019 Look up ↗
N883L IN 2019 · Look up ↗
N884L IN 2019 · Look up ↗
N914GM CA 2016 · Look up ↗
N916SF TX 2025 · Look up ↗
N94NG CO 2009 Look up ↗

Source — FAA Aircraft Registry · click "Look up" to query the live registry record (owner, address, last airworthiness)

05 /  Sources & Methodology

Every count traces back to a primary US-government source

We render counts and lists as the agency publishes them. Read the methodology →