DUI / drink drivingPossibly — unconfirmed

36 CFR § 4.23 — National Park Service lands (≥0.08 BAC, or the stricter state limit, or impairment)Possibly — unconfirmed

Imprisonment

0 (no mandatory prison) – 6 months

Fine

Fine via § 3571 — Class B misdemeanour cap $0–$5,000

0 = the law sets no minimum prison term. The court is not required to impose prison. Depending on the offence, jurisdiction, and case, it may instead impose a non-custodial sentence — e.g. a suspended sentence, community order / probation, a fine, or a discharge.

Custodial range via 36 CFR § 1.3(a).

18 U.S.C. § 13(b)(2) — Assimilative Crimes Act: the applicable state’s DUI law applies as federal lawPossibly — unconfirmed

Imprisonment

Per the assimilated state law

Fine

Fine per the assimilated state law

18 U.S.C. § 13(b)(2) — child passenger extraPossibly — unconfirmed

Imprisonment

0 (no mandatory prison) – 1 year (0–5 years if serious bodily injury, 0–10 years if death)

Fine

Fine per the assimilated state law

0 = the law sets no minimum prison term. The court is not required to impose prison. Depending on the offence, jurisdiction, and case, it may instead impose a non-custodial sentence — e.g. a suspended sentence, community order / probation, a fine, or a discharge.