Legislation – Railways and Transport Safety Act 2003
Changes to legislation:
Railways and Transport Safety Act 2003, Section 93 is up to date with all changes known to be in force on or before 10 December 2025. There are changes that may be brought into force at a future date. Changes that have been made appear in the content and are referenced with annotations.
Changes to Legislation
Revised legislation carried on this site may not be fully up to date. Changes and effects are recorded by our editorial team in lists which can be found in the ‘Changes to Legislation’ area. Where those effects have yet to be applied to the text of the legislation by the editorial team they are also listed alongside the legislation in the affected provisions. Use the ‘more’ link to open the changes and effects relevant to the provision you are viewing.
Changes and effects yet to be applied to Section 93:
- s. 92–94 power to apply (with modifications) by 2018 c. 5 Sch. 3 para. 6(1)–(3)
Part 5Aviation: Alcohol and Drugs
Offences
93Prescribed limit
(1)
A person commits an offence if—
(a)
he performs an aviation function at a time when the proportion of alcohol in his breath, blood or urine exceeds the prescribed limit, or
(b)
he carries out an activity which is ancillary to an aviation function at a time when the proportion of alcohol in his breath, blood or urine exceeds the prescribed limit.
(2)
The prescribed limit of alcohol is (subject to subsection (3))—
(a)
in the case of breath, 9 microgrammes of alcohol in 100 millilitres,
(b)
in the case of blood, 20 milligrammes of alcohol in 100 millilitres, and
(c)
in the case of urine, 27 milligrammes of alcohol in 100 millilitres.
(3)
In relation to the aviation function specified in section 94(1)(h) the prescribed limit is—
(a)
in the case of breath, 35 microgrammes of alcohol in 100 millilitres,
(b)
in the case of blood, 80 milligrammes of alcohol in 100 millilitres, and
(c)
in the case of urine, 107 milligrammes of alcohol in 100 millilitres.
(4)
The Secretary of State may make regulations amending subsection (2) or (3).
(5)
Section 94 defines “aviation function” and “ancillary activity” for the purposes of this Part.