Delaware 153rd General Assembly Status: Introduced 1 D cosponsors

HB 399 — AN ACT TO AMEND TITLE 6 OF THE DELAWARE CODE RELATING TO 3-DIMENSIONAL PRINTERS AND FIREARMS.

Last action — Judiciary

  1. 1
    Introduced
  2. 2
    In Committee
  3. 3
    Passed House
  4. 4
    Passed Senate
  5. 5
    To Executive
  6. 6
    Enacted

This bill has been introduced in the House. Introduced June 11, 2026. It must pass committee before a floor vote.

Next likely step: a committee referral and hearing.

Odds of enactment

Low chance

Based on the sponsor, cosponsors, and committee posture, this bill has a low chance of becoming law.

Upgrade to see the exact probability and what's driving it.

A statistical estimate from our own model of past outcomes — an insight, not a guarantee. Policymaking is volatile.

Prognosis

Not enough signal yet

Not enough signal yet to read this bill's trajectory — we surface a likelihood only once there's real movement (stage, sponsorship, committee, or votes) to point to.

Based on stage, sponsorship breadth, committee status, recorded votes, and cross-state momentum — a description of the observable signals, not a prediction.

In plain language

This bill mandates 3D printers in Delaware to have technology that prevents firearm production.

The bill requires all 3D printers sold in Delaware to include blocking technology that prevents the creation of firearms or firearm parts. Before enforcing this requirement, the Attorney General will form a working group to set safety standards and evaluate the feasibility of the technology.

What this means for you
  • Small Business: If you sell 3D printers, you will need to ensure they have the required blocking technology to be compliant.

Summary

This Act requires that all 3D printers sold or delivered in the State be equipped with blocking technology that prevents 3D printers from being used to create firearms or firearm parts. All 3D printer manufacturers must submit to the Attorney General a sworn attestation that they have equipped a make and model with blocking technology in order for sales and deliveries of the make and model to be lawful in the State. Before the ban goes into effect, this Act directs the Attorney General to create a working group that will recommend the minimum safety standards a 3D printer’s blocking technology must meet in order to comply with the requirements of this Act. The working group must also determine the feasibility of requiring 3D printers include blocking technology. If the working group determines the requirement is feasible, the Attorney General is authorized to do the following: (1) Promulgate rules and regulations establishing performance standards for 3D printing blocking technology. (2) Facilitate the creation of a library that securely holds 3D files that are banned under this Act to be used in the creation of blocking technology. The prohibition on the selling or delivery of any 3D printer not equipped with blocking technology is effective 6 months after notice by the Attorney General is published in the Register of Regulations that final regulations to implement this Act have been adopted.

Bill Text

We don't have the full text on file for this bill yet.

Read HB 399 on the official Delaware source →

Action History

  1. Judiciary

Sponsors

Sponsorship breakdown

Export CSV (upgrade) →

1 sponsors · 0 co-sponsors · 61 not signed on

Sponsors (1)

Co-sponsors (0)

None.

Not signed on (61)

61 members have not signed on to this bill.

Show all 61 →

"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.

Whip count is in markup. Polling the chamber and every recorded vote this session. Only the first open is slow. It’s instant for you after this. Calling the roll · Tallying · Engrossing

Subjects

public-safety technology
Cross-referencing the record. Reading this bill against every other bill in the corpus by meaning, not keywords. Only the first open is slow. It’s instant for you after this. Matching · Ranking · Engrossing

Frequently asked questions

What does HB 399 do?
This Act requires that all 3D printers sold or delivered in the State be equipped with blocking technology that prevents 3D printers from being used to create firearms or firearm parts. All 3D printer manufacturers must submit to the Attorney General a sworn attestation that they have equipped a make and model with blocking technology in order for sales and deliveries of the make and model to be lawful in the State. Before the ban goes into effect, this Act directs the Attorney General to create a working group that will recommend the minimum safety standards a 3D printer’s blocking technology must meet in order to comply with the requirements of this Act. The working group must also determine the feasibility of requiring 3D printers include blocking technology. If the working group determines the requirement is feasible, the Attorney General is authorized to do the following: (1) Promulgate rules and regulations establishing performance standards for 3D printing blocking technology. (2) Facilitate the creation of a library that securely holds 3D files that are banned under this Act to be used in the creation of blocking technology. The prohibition on the selling or delivery of any 3D printer not equipped with blocking technology is effective 6 months after notice by the Attorney General is published in the Register of Regulations that final regulations to implement this Act have been adopted.
Who sponsors HB 399?
HB 399 is sponsored by Krista Griffith (Democratic).
What is the current status of HB 399?
This bill has been introduced in the House. Introduced June 11, 2026. It must pass committee before a floor vote.
Where can I track HB 399?
Track HB 399 free on One Click Politics — get push/email alerts when it moves.

Make your voice heard on HB 399

Find the representatives who decide this bill and tell them where you stand — for yourself, or mobilize your whole list in one click with One Click Politics advocacy software.

Find my representatives → Run a campaign

Stay ahead of HB 399

Last checked for changes 3 months ago · updated continuously

One Click Politics tracks every bill in Congress and all 50 states.

Track this bill →