For many companies, alcohol abuse is still a major problem, and is complicated by case law that controls what action you may take. Those companies employing high risk workers such as scaffolders,drivers, and machinists need to take a harder line than those employing office workers. Testing is generally done using breathalysers and the digital alcohol meters NZDDA use are very accurate and comply with the AS 3547:1997, for the measurement of alcohol. As you can see the standard (AS 3547:1997) is for the device and not the levels unlike the standards for Urine and Oral Fluid testing. Alcohol levels are set by the company and should be outlined in the company Drug and Alcohol Policy.
Common alcohol levels for the workplace are:
The legal driving limit of 400 micrograms of alcohol per litre of breath (400 μg/L)for over 20 year olds and 0 micrograms of alcohol per litre of breath for under 20 year olds
Zero Tolerance which is often considered by industry to be 100 micrograms of alcohol per litre of breath (100 μg/L)