Wednesday Words. Arc = a hi-temp luminous electric discharge across a gap or through a medium such as charred insulation. Sever arc = an arc site where 1 or more circuit conductors were physically severed by arcing event at that location. NFPA 921, 2021 Ed. Secs 3.3.8 & 3.3.174.

The IAAI wants to wish its US community a safe and wonderful Independence Day! Remember to follow fireworks safety, don’t leave grills unattended, and drive with caution. Above all, have fun!

The National Firefighter Registry is now open! We need all U.S. firefighters - paid or volunteer, active or retired, with/without cancer - to join. NIOSH will use the registry to understand and reduce cancer risk in the fire service. Joint today at #NIOSH

We would like to extend our deepest condolences to the family and friends of Russell Nummer (IL), who passed away this weekend. Russ was a vital member of the IAAI and served in many capacities throughout the years. Our thoughts and prayers are with all who knew him.

The Photovoltaic Systems class is in progress in Orlando, FL today. Instructors Jason McPherson (left) and Richard Marzola are sharing their extensive knowledge, allowing students to get a better understanding of the electrical aspects of these systems. #fireinvestigations

The IAAI is excited to share the National Firefighter Registry, a new effort to understand and reduce cancer in firefighters. Together, we can have a lasting impact on the fire service. Join today at #NationalFirefighterRegistry @NIOSH.

Ensuring everyone knows their role and how to be an effective team member benefits the investigative process. Training from the IAAI ( and provide a foundation that sets your personnel on a successful professional development path.

According to statistics from the NFP, each year approximately 52,000 structure fires, 13,000 vehicle fires, and 185,000 outside or unclassified fires are attributed to arson. During Arson Awareness Week, listen to the IAAI arson podcast at

Deadline to register for the 2023 ITC is April 16. Join leading professionals from around the world for 100+ hours of fire investigation training in Cherokee, NC, 4/23-28. Fulfill NFPA 1033 CE requirements. Register Now:

Only 6-weeks left before the 2023 International Training Conference. Join leading professionals from around the world for 100+ hours of fire investigation training in Cherokee, NC, 4/23-28. Fulfill NFPA 1033 CE requirements. REGISTRATION CLOSES, 4/16:

Don’t Delay, Book your Hotel for the 2023 International Training Conference. Join leading professionals from around the world for 100+ hours of fire investigation training in Cherokee, NC, 4/23-28. Fulfill NFPA 1033 CE requirements. REGISTER NOW: #ITC2023

Don’t Delay, Book your Hotel for the 2023 International Training Conference. Join leading professionals from around the world for 100+ hours of fire investigation training in Cherokee, NC, 4/23-28. Fulfill NFPA 1033 CE requirements. REGISTER NOW: #ITC2023

Who Should Attend the 2023 ITC? Professionals involved in fire investigations including fire investigators, law enforcement, federal investigators, insurance adjusters, building inspectors and more! Cherokee, NC, 4/23-28. Fulfill NFPA 1033 CE requirements.

Give your team the gift of education by enrolling them in the 2023 International Training Conference, hosted by the IAAI and the IAAI Foundation. 100+ hours of fire investigation training in Cherokee, NC, 4/23-28. Fulfills NFPA 1033 CE requirements.

REGISTRATION IS OPEN for the 2023 International Training Conference. Join leading professionals from around the world for the 100+ hours of fire investigation training in Cherokee, NC, 4/23-28. Fulfill NFPA 1033 CE requirements. Register now. #ITC2023

Voting for the election of an IAAI Second Vice President, four members of the IAAI Board of Directors, one Director for the IAAI Foundation, and one proposed Constitution & By-Law amendment OPENS Tomorrow.

RT @KaraMcGuirk: Thank you @ApplePodcasts for promoting ARSON! @IAAIhq @ATFHQ

RT @ATFHQ: In 2003, the DC region was terrorized by one of the most notorious arsonists in US history. This is the story of the arson inves….

Join leading professionals from around the world for the 2022 International Training Conference, hosted by the IAAI & IAAI Foundation, for 100+ hours of fire investigation training in Jacksonville. Courses can fulfill NFPA 1033 CE requirements. Register!