Idaho § 63-2425 - Dyed fuel and other untaxed fuel prohibited for use on a highway

Full text of Idaho Idaho Statutes § 63-2425 — Dyed fuel and other untaxed fuel prohibited for use on a highway, with citation guidance and answers to common questions.

§ 63-2425. Dyed fuel and other untaxed fuel prohibited for use on a highway

(1) Except as provided in subsections (2) and (5) of this section, no person shall operate a motor vehicle on a highway in this state if the fuel supply tanks of the vehicle contain diesel fuel that has been dyed or marked at a refinery or terminal under the provisions of 26 U.S.C. 4082 and regulations adopted thereunder or under the clean air act and regulations adopted thereunder or if the tanks contain other motor fuel on which the tax under section 63-2402 , Idaho Code, has not been paid.

(2) The following vehicles may use dyed fuel on the highway but are subject to the tax under section 63-2402 , Idaho Code, unless exempt under other provisions of this chapter:

(a) State and local government vehicles; and

(b) Any vehicles that may use dyed fuel on the highway under the provisions of 26 U.S.C. 4082 or regulations adopted thereunder.

(3) For the purposes of enforcement of this section, Idaho state police officers or employees of the Idaho transportation department may conduct a visual observation of fuel to detect the presence of dye. If dye is observed, such officers or employees shall take a photograph of the dyed fuel. Such photographs shall be preserved as evidence.

(4) In the event of a change of ownership or other disposal of a motor vehicle authorized to use dyed fuel on the highway pursuant to subsection (2) of this section but that no longer falls within the provisions of that subsection, the motor vehicle’s owner, before selling or disposing of such vehicle, shall remove the dyed fuel from the vehicle’s fuel tanks and certify that such dyed fuel has been removed.

(5) Incidental use or crossing of public roads or highways by vehicles intended primarily for off-highway use, including as provided for in section 49-110 (3), Idaho Code, with respect to an implement of husbandry, shall not be considered a violation of this section.

[63-2425, added 1995, ch. 348, sec. 5, p. 1149; am. 2002, ch. 174, sec. 11, p. 517; am. 2009, ch. 150, sec. 1, p. 439; am. 2015, ch. 38, sec. 4, p. 82; am. 2020, ch. 327, sec. 3, p. 944.]

Source: official Idaho text · Last verified 2026-08-27

Frequently Asked Questions About Idaho § 63-2425

What does Idaho Statutes § 63-2425 cover?

Section 63-2425 ("Dyed fuel and other untaxed fuel prohibited for use on a highway") is part of the Idaho Statutes, the codified statutory law of Idaho. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Idaho § 63-2425?

A common citation format is "Idaho Statutes § 63-2425" (Idaho). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Idaho law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Idaho official source linked on this page or consult a licensed Idaho attorney.

How does Idaho § 63-2425 apply to my situation?

Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Idaho can advise on how this section applies to you. Contact your state or local bar association for a referral.

Sources & Verification

Not legal advice. Verify against the official source and consult a licensed attorney in Idaho.