Part 3 Duties of Northern Ireland departments in relation to limit values etc
Northern Ireland
- 18Duty in relation to limit values
- 19Duty in relation to target values
- 20Date of application for limit values and target values
- 21Duty in relation to long-term objectives for ozone
- 22Duty in relation to information and alert thresholds
- 23Duty in relation to critical levels for the protection of vegetation