Who has to install one in Oklahoma
Program run by: Oklahoma Board of Tests for Alcohol and Drug Influence (BOT), Ignition Interlock Device Assurance Program · agency page
Law: 47 O.S. 6-212.3 (cite from memory, unverified); OAC 40:50-1 (BOT interlock rules) · read it
For the rule that applies to you, read your court order or the letter from the DMV.
A judge can order an interlock in other cases too. Your court order or DMV letter is what binds you.
Where each company can install in Oklahoma
You'll go back to the same company's locations for service for the whole order, so check that one is close to where you live and work before you book.
79 locations
Intoxalock
37 locations
Low Cost Interlock
29 locations
LifeSafer
19 locations
Guardian
5 locations
RoadGuard
5 locationsLocations as each company lists them on its own locator (Smart Start, Intoxalock, LifeSafer, Low Cost Interlock, Guardian, RoadGuard), pulled Oct 2026. Some shops serve more than one company. Alcohol Detection Systems doesn't publish a locator we could read.
Interlock companies approved in Oklahoma
- In Oklahoma
- 79 service locations listed
- Nationwide
- On 40 of 44 state lists
- 12 months, filed fees
- $1,460–$1,510
- App rating
- 2.0 from 113 (App Store)
- In Oklahoma
- 37 service locations listed
- Nationwide
- On 37 of 44 state lists
- 12 months, filed fees
- $1,427–$1,552
- App rating
- 1.7 from 899 (App Store)
- In Oklahoma
- 29 service locations listed
- Nationwide
- On 19 of 44 state lists
- 12 months, filed fees
- $1,215–$1,365
- App rating
- 1.4 from 11 (App Store)
LifeSafer
Listed as “LifeSafer Interlock”- In Oklahoma
- 19 service locations listed
- Nationwide
- On 34 of 44 state lists
- 12 months, filed fees
- $1,205–$1,355
RoadGuard
Listed as “RoadGuard Interlock”- In Oklahoma
- 5 service locations listed
- Nationwide
- On 28 of 44 state lists
- 12 months, filed fees
- $1,273
Guardian
Listed as “Guardian Interlock Systems”- In Oklahoma
- 5 service locations listed
- Nationwide
- On 16 of 44 state lists
- Nationwide
- On 28 of 44 state lists
ALCOLOCK
Listed as “ALCOLOCK of Oklahoma”- Nationwide
- On 12 of 44 state lists
From the state's approved list (read it). Use a company on this list, or the install won't count. 12-month figures are lease, install and removal from each company's filed or published fee schedule, not Oklahoma prices; see how we add them up.
Related guides
InterlockCompare is independent and doesn't make, sell or install interlocks. Not legal advice.