American Knife and Tool Institute

Keeping Knives in American Lives Since 1998

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Keeping Knives in American Lives Since 1998

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For Law Enforcement

AKTI is the resource for law enforcement, providing, interpreting and understanding knife laws in all 50 states, D.C. and locally.

Thanks Law Enforcement for all you do!
Thanks Law Enforcement for all you do!

We are creating more resources to assist law enforcement professionals in effectively doing their work. If you have questions, we are happy to help. Contact us for assistance.

Knife Definitions

  • Approved Knife Definitions

How to Measure a Knife

  • Protocol for Measuring Knife Blade Length (PDF)
  • How to Measure the Blade Length of a Knife Video

Knife Laws

We have knife laws of all 50 states and D.C. on our website that have been accurately prepared and is regularly updated by our legal counsel.  Contact us if you need access or additional clarification.

Take Action

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Popular Resources

  • AKTI Knife Auction
  • AKTI Approved Knife Definitions
  • State Knife Laws
  • State Auto-Open Laws
  • What Every Knife Owner Should Know
  • Traveling with Knives
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As a nonprofit association, AKTI’s role is to be the reasonable and responsible advocate for the knife-making and knife-using community; educating, promoting and informing that knives are important tools.

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