---
title: "Is ignition interlock mandatory for a first DUI in Rhode Island?"
description: "It is mandatory if the BAC was 0.15 or higher under § 31-27-2(d)(1)(iii). For lower BAC tiers, the interlock is discretionary and may or may not be ordered by the sentencing judge."
url: https://riduilaws.com/faq-items/is-ignition-interlock-mandatory-for-a-first-dui-in-rhode-island/
date: 2026-10-29
modified: 2026-10-29
author: "RI DUI Laws"
type: faq
lang: en
---

# Is ignition interlock mandatory for a first DUI in Rhode Island?

It is mandatory if the BAC was 0.15 or higher under § 31-27-2(d)(1)(iii). For lower BAC tiers, the interlock is discretionary and may or may not be ordered by the sentencing judge.

Is ignition interlock mandatory for a first DUI in Rhode Island?[RI DUI Laws](https://riduilaws.com/author/admin_xxgjem88/)2026-10-29T22:26:32+00:00