Land Transport Act 1998

Driving offences involving drink or drugs, and penalties and procedures - Offences, defences, penalties, and blood test fee - Offences and penalties

57C: Driving offence: alcohol and 1 qualifying drug

You could also call this:

"Driving with alcohol or certain drugs in your system is against the law"

Illustration for Land Transport Act 1998

If you drive a car with alcohol and a qualifying drug in your system, you commit an offence. The police can take a blood test under section 72 or 73 to check your blood. You will be in trouble if your blood has too much alcohol or a qualifying drug. If you are under 20, the rules are stricter. You can't have more than 30 milligrams of alcohol per 100 millilitres of blood. The police can also test your oral fluid to see if you have a qualifying drug. There are different rules for people with an alcohol interlock licence or a zero alcohol licence, see section 57AA. You can get in trouble if you drive with too much alcohol or a qualifying drug in your system. The police can give you a breath test under section 69 to check your breath.

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View the original legislation for this page at https://legislation.govt.nz/act/public/1986/0120/latest/link.aspx?id=LMS822216.

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57B: Driving offence: 2 or more qualifying drugs, or

"Driving with 2 or more drugs in your blood is against the law"


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57D: Penalties for offences against sections 57A(1), 57B(1), and 57C(1), or

"Punishments for driving after taking drugs"

Part 6Driving offences involving drink or drugs, and penalties and procedures
Offences, defences, penalties, and blood test fee: Offences and penalties

57CDriving offence: alcohol and 1 qualifying drug

  1. A person who drives or attempts to drive a motor vehicle on a road commits an offence if, as ascertained from an analysis of a blood specimen subsequently taken from the person under section 72 or 73, the person’s blood contains alcohol and evidence of use of 1 qualifying drug and any or all of the following apply:

  2. the proportion of alcohol in the person’s blood—
    1. exceeds 80 milligrams of alcohol per 100 millilitres of blood; or
      1. if the person is younger than 20, exceeds 30 milligrams of alcohol per 100 millilitres of blood; or
        1. if the person holds an alcohol interlock licence or a zero alcohol licence, equals or is less than 50 milligrams of alcohol per 100 millilitres of blood:
        2. the drug is a listed qualifying drug and the blood concentration level of the drug exceeds the high-risk level for the drug:
          1. the drug is an unlisted qualifying drug and the blood specimen was taken after the person failed to complete a compulsory impairment test in a manner satisfactory to an enforcement officer who is trained to give the test when the person was required to do so under section 71F.
            1. A person who drives or attempts to drive a motor vehicle on a road commits an infringement offence if the person’s blood, as ascertained from an analysis of a blood specimen subsequently taken from the person under section 72 or 73,—

            2. contains alcohol and the proportion of alcohol in the person’s blood equals or is less than—
              1. 80 milligrams of alcohol per 100 millilitres of blood; or
                1. if the person is younger than 20, 30 milligrams of alcohol per 100 millilitres of blood; and
                2. contains evidence of use of a qualifying drug and,—
                  1. if the drug is a listed qualifying drug, the blood concentration level of the drug equals or is less than the high-risk level (if any) for the drug; and
                    1. if the drug is an unlisted qualifying drug, the person was not required to undergo a compulsory impairment test under section 71F before the blood specimen was taken.
                    2. A person who drives or attempts to drive a motor vehicle on a road commits an infringement offence if,—

                    3. as ascertained from an analysis of a blood specimen subsequently taken from the person under section 72 or 73, the person’s blood contains alcohol but the proportion of alcohol in the person’s blood equals or is less than—
                      1. 80 milligrams of alcohol per 100 millilitres of blood; or
                        1. if the person is younger than 20, 30 milligrams of alcohol per 100 millilitres of blood; and
                        2. analysis carried out by an approved analyst indicates that the person’s oral fluid sample is positive for 1 listed qualifying drug.
                            1. A person who drives or attempts to drive a motor vehicle on a road commits an infringement offence if—

                            2. the proportion of alcohol in the person’s breath, as ascertained by an evidential breath test subsequently undergone by the person under section 69, equals or is less than—
                              1. 400 micrograms of alcohol per litre of breath; or
                                1. if the person is younger than 20, 150 micrograms of alcohol per litre of breath; and
                                2. analysis carried out by an approved analyst indicates that the person’s oral fluid sample is positive for 1 listed qualifying drug.
                                    1. Subsections (2), (3), and (4) do not apply to a person who holds an alcohol interlock licence or a zero alcohol licence (see section 57AA for offences relating to contravention of specified breath or blood alcohol limits by a holder of an alcohol interlock licence or a zero alcohol licence).

                                    Notes
                                    • Section 57C: inserted, on , by section 10 of the Land Transport (Drug Driving) Amendment Act 2022 (2022 No 5).
                                    • Section 57C heading: replaced, on , by section 10(1) of the Land Transport (Drug Driving) Amendment Act 2025 (2025 No 12).
                                    • Section 57C(3) heading: replaced, on , by section 10(2) of the Land Transport (Drug Driving) Amendment Act 2025 (2025 No 12).
                                    • Section 57C(3)(b): replaced, on , by section 10(3) of the Land Transport (Drug Driving) Amendment Act 2025 (2025 No 12).
                                    • Section 57C(3)(c): repealed, on , by section 10(4) of the Land Transport (Drug Driving) Amendment Act 2025 (2025 No 12).
                                    • Section 57C(4) heading: replaced, on , by section 10(5) of the Land Transport (Drug Driving) Amendment Act 2025 (2025 No 12).
                                    • Section 57C(4)(b): replaced, on , by section 10(6) of the Land Transport (Drug Driving) Amendment Act 2025 (2025 No 12).
                                    • Section 57C(4)(c): repealed, on , by section 10(7) of the Land Transport (Drug Driving) Amendment Act 2025 (2025 No 12).