---
kind: "section"
citation: "23 C.F.R. § 1275.3"
title: "23"
number: "1275.3"
heading: "Definitions."
url: "https://uscodex.org/cfr/23/1275.3"
---

# §1275.3. Definitions.


As used in this part:

- (a) **24-7 sobriety program—** has the meaning given the term in [§ 1300.23(b)](/cfr/23/1300.23.md?p=b) of this title.
- (b) Alcohol concentration means grams of alcohol per 100 milliliters of blood or grams of alcohol per 210 liters of breath.
- (c) Driving while intoxicated means driving or being in actual physical control of a motor vehicle while having an alcohol concentration above the permitted limit as established by each State, or an equivalent non-BAC intoxicated driving offense.
- (d) **Driving under the influence—** has the same meaning as “driving while intoxicated.”
- (e) FHWA means the Federal Highway Administration.
- (f) Ignition interlock system means a State-certified system designed to prevent drivers from starting their car when their breath alcohol concentration is at or above a preset level.
- (g) Imprisonment means confinement in a jail, minimum security facility, community corrections facility, house arrest with electronic monitoring, inpatient rehabilitation or treatment center, or other facility, provided the individual under confinement is in fact being detained.
- (h) Mandatory sentence means a sentence that cannot be waived, suspended, or otherwise reduced by the State.
- (i) Motor vehicle means a vehicle driven or drawn by mechanical power and manufactured primarily for use on public highways, but does not include a vehicle operated solely on a rail line or a commercial vehicle.
- (j) NHTSA means the National Highway Traffic Safety Administration.
- (k) Repeat intoxicated driver means a person who has been convicted of driving while intoxicated or driving under the influence of alcohol more than once in any five-year period.
- (l) Repeat intoxicated driver law means a State law or combination of laws or programs that impose the minimum penalties specified in [§ 1275.4](/cfr/23/1275.4.md) for all repeat intoxicated drivers.
- (m) State means any of the 50 States, the District of Columbia or the Commonwealth of Puerto Rico.

## Notes

### Authority

Authority: 23 U.S.C. 164; delegation of authority at 49 CFR 1.85 and 1.95.

### Source

Source: 81 FR 67168, Sept. 30, 2016, unless otherwise noted.