National Association of Professional Accident Reconstruction Specialists

Members get access to the Reference Library of technical papers and crash related reference materials, and a NAPARS exclusive: all back-issues of Accident Reconstruction Journal and Accident Investigation Quarterly, and more! Click Join for more details!   


 Accident Reconstruction Journal update, 18 August 2020:  Issue 30(4), #178 is out.

 NAPARS News update, 08 August 2020: The second newsletter this year is in the works.

Upcoming events

    • 06 Oct 2020
    • (EDT)
    • Worldwide
    NAPARS will be hosting an ACTAR exam on 10/6/20 in conjunction with the Joint Conference. Register for this or any other ACTAR test at the ACTAR website Be sure to register well in advance - it is a certification process, so it takes some time.

    • 24 Dec 2020
    • 08:00 - 16:00 (EST)
    • Ocean City MD

    2020 Joint Conference, hosted by NAPARS, (Date TBD)

    UPDATE 08/08/2020: This event has been changed: This will be conducted as an online "virtual" conference over several sessions on dates to be determined. We wish it could be otherwise, but current circumstances dictate that we cancel the in-person conference. The up-side to this is that ALL members will have the opportunity to attend the virtual presentations and get ACTAR credits, without having to travel. More details will be coming soon. Peace. -Wade, admin.


    DATES: Oct 7,8,9 (Wed. to Fri.) 

    COST:   $299 for members of the 5 supporting groups, ITAI or EVU, $399 for others.

    LOCATION: Grand Hotel in Ocean City MD. 

               $69 - No view, but a fine room.

               $79 - Partial View

               $89 - Full Ocean View

    Call the Grand Hotel directly and mention the NAPARS Joint Conference

    to secure reduced conference room rates: 1-800-447-6779 

    $69 (no view), $79 (partial view), and $89 (ocean view)

    More information:

    Live crash tests will be conducted by Brad Muir and his team on Wednesday afternoon at the airport.

    Scheduled Speakers include: Brad Muir (CDR Update), Wes Grimes (CMV Acceleration Rates forward & reverse), Matt DiSiroga (CMV EDR), John Daily (Topic TBD)

    Airport shuttle will be running to Salisbury Airport on Tuesday afternoon and Friday after the conference, so no rental car is required!

    Meals Included:

    Breakfast & Lunch on Wednesday and Friday, and all 3 meals on Thursday.

    Wednesday night attendees will be on their own.

    Thursday night will be a business casual get together with a cash bar.


    TIRE FORENSICS, 2-day class by T.J.Tennant, October 5 and 6, $250 per person - see that page for separate registration.

    ACTAR Prep class, Oct 5. Cost and details TBA when firmed up

    ACTAR Test, Oct 6. You have to register with ACTAR - not with us!

    There will be ACTAR CEUs available - we don't know how many yet.

    More news as it becomes available.

    • 25 Dec 2020
    • 08:00 - 17:00 (EST)
    • Grand Hotel, Ocean City MD

    Tire Forensics Class with T. J. Tennant (Date TBD)

    UPDATE 08/08/2020: This event has been changed: This will be conducted as an online "virtual" 2-hour class, with a full 3-day Tire Forensics class scheduled in the spring. The up-side is that ALL members will have the opportunity to attend the virtual presentation and get ACTAR credits, without having to travel. More details will be coming soon.

    Peace. -Wade, admin.

    2-days of tire information from one of the country's prominent tire experts!

    T.J. retired from Bridgestone Tire, and brings a lifetime of valuable knowledge and information to assist accident reconstructionists.

    Expected topics include:

    • Why Tires Are Important
    • Tire Performance Requirements
    • Tire Construction Basics
    • Vehicle Door Placard
    • UTQG (Uniform Tire Quality Grading)
    • Load Index
    • Tire Deflection
    • Proper Tire Maintenance
    • Tire Repairs
    • Air Pressure Effects on Tires
    • Tire Application Guidelines
    • P-Metric vs Euro-Metric vs Light Truck
    • Truck/Bus Radial (TBR) Basics
    • Materials
    • Components
    • Repairs
    • Tire/Rim Load Capacity Vs. GAWR
    • Failure Analysis (Hands on)

    Attendees are encouraged to bring notebooks.

    Attendees will be on their own for meals. There are loads of restaurants in and around the hotel. It is Ocean City, after all!

    T.J.'s book, available from IPTM, is suggested reading, but not required, and is not supplied with the class.

    Passenger and Light Truck Tire Conditions Manual This clear, easy-to-read manual will assist everyone who wishes to expand their knowledge of the potential causes of different tire conditions. This is the book used by engineers in virtually every tire manufacturing company. Click Here to visit IPTM's store.

    In class, T.J. also refers to The Tire and Rim Association Annual Yearbook The YEAR BOOK contains all TRA Standards and approved related information for tires, rims, and allied parts for ground vehicles. These Standards include tire designations; tire load ratings and dimensions; approved rim contour(s) and valve(s) for each tire size; rim contour dimensions; valve dimensions; and other data and notes necessary for tire/rim/valve interchangeability. This book is available for $125.00 (including shipping in the USA, and handling).

NAPARS membership includes a complimentary subscription to the digital edition of the Accident Reconstruction Journal, which comes out 6 times each year. ARJ provides timely, reliable, and fresh research, thought-provoking reconstruction related studies and meaningful crash test data from multiple sources.
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