DL 28 Form – The DL 28 Form, officially titled the Laboratory Report, is a critical California DMV document used exclusively for certifying breath alcohol ignition interlock devices (BAIID). Laboratories and device manufacturers rely on this form to verify compliance with federal standards before devices can be approved for use in California’s ignition interlock program.
If you are searching for the DL 28 Form California DMV, DL-28 Laboratory Report PDF, or need to download DL 28 PDF, you have come to the right place. Below is the most current, official direct download link from the California DMV (revised March 2014, uploaded April 2025 and still active as of 2026).
Official Download Link:
Download DL 28 Form PDF
What Is the DL 28 Form?
The DL 28 Form (DL-28) is the California Department of Motor Vehicles’ official Laboratory Report. It is a one-page certification document that laboratories use to confirm a specific breath alcohol ignition interlock device meets the U.S. Department of Transportation’s model specifications published in the Federal Register (Volume 78, Number 89, May 8, 2013, pages 26849–26867).
This form is not for individual drivers filing medical reports or routine DUI blood tests. It is strictly for occupational licensing and device certification related to ignition interlock programs.
Purpose of the DL 28 Laboratory Report
The primary purpose of the DL-28 form is to provide the DMV with documented proof that:
- The laboratory conducted all required tests on the device.
- The testing equipment was properly maintained and calibrated.
- Personnel were fully trained.
- The device meets federal breath alcohol ignition interlock model specifications.
- All records are accurate and maintained in the ordinary course of laboratory business.
California requires this certification as part of the approval process for BAIID manufacturers and installers participating in the state’s ignition interlock device program (often mandated for DUI convictions).
Who Needs to Submit the DL 28 Form?
You (or your laboratory) must complete and submit the DL 28 Form if you are:
- A manufacturer applying for DMV approval of a breath alcohol ignition interlock device.
- A certified testing laboratory submitting results for a new or updated BAIID model.
- An applicant for occupational licensing as a BAIID manufacturer, installer, or service provider.
Individual drivers, physicians, or standard DUI labs do not use this form. It is reserved for device certification in the occupational licensing context.
How to Download the DL 28 Form PDF (Official & Free)?
- Visit the official California DMV website.
- Go directly to the secure link provided by the DMV:
Download DL 28 Form PDF - The file is named DL-28-R3-2014-ASB-WWW.pdf (Revision 3/2014).
Always download from the official DMV portal to ensure you have the most current version. No login or registration is required.
How to Complete the DL 28 Form Step-by-Step?
The form is straightforward and contains only two main sections plus a DMV use-only area.
Section 1 – Laboratory Information
- Testing Laboratory Address
- Telephone Number(s)
- Device Name
- Model Number
- Description of Device
Section 2 – Certification
The authorized laboratory official must sign and date the certification statement, which includes:
- Confirmation that all federal model specification tests were performed.
- Assurance that equipment, personnel, and records meet regulatory standards.
- Printed name and title of the certifying official.
DMV Use Only section at the top is left blank for DMV staff (laboratory visited, information verified, etc.).
Important: Attach the actual laboratory test results to the DL 28 Form when submitting.
Where to Submit the Completed DL 28 Form?
Submit the completed DL 28 Laboratory Report as part of your application package to the California DMV Occupational Licensing section. Refer to the official Occupational Licensing Forms page for exact mailing or electronic submission instructions:
DMV Occupational Licensing Forms
Related California DMV Forms for Ignition Interlock Programs
- OL 624 – Random Retest Compliance Self Certification
- DL 170 ETP – Certificate of Driving Skill
- DL 405 – Various interlock-related forms
All are available on the same DMV occupational licensing page.
Frequently Asked Questions (FAQs) About DL 28 Form
Is the DL 28 Form the same as a DUI lab report or medical evaluation?
No. DL 28 is exclusively for breath alcohol ignition interlock device certification, not individual blood/urine tests or driver medical reports.
Can I fill out the DL 28 Form myself as a driver?
No. Only an authorized laboratory official may complete and sign it.
Is the 2014 revision still valid in 2026?
Yes. The DMV continues to list and host the DL-28-R3-2014 version as the current official form.
Where can I find the federal specifications referenced in the form?
Federal Register Volume 78, Number 89 (May 8, 2013) – Model Specifications for Breath Alcohol Ignition Interlock Devices.
For the most accurate and up-to-date information, always refer directly to the California DMV website and download the DL 28 Form PDF from the official source linked above.
Need the form right now?
Click here to download the official DL 28 Laboratory Report PDF
This guide was prepared using the latest official California DMV sources as of April 2026. Bookmark this page for future reference when you need the DL 28 Form or DL-28 PDF download.