During winter, and at other times of year when snow may still fall, you may need to have snow chains with you, even if you dont have to put them on. If you have an all wheel drive or four wheel drive vehicle you generally wont need chains.
It is very unlikely that you will require chains to get to Habitat Chalet if you are coming via Canberra and Cooma. If you are coming by the shortest route from Melbourne, via Khancoban, you pass Dead Horse Gap near Thredbo at an altitude of 1580 meters so chains may be required.
Depending on what you are doing when you get here, you may need to carry chains. If you are in a two wheel drive vehicle, it is compulsory to carry them into the National Park so if you are driving to Thredbo or Perisher, or coming to Alpine Habitats via Khancoban, you will need to have them with you – even if you do not need to put them on.
If you catch the Ski Tube (underground railway to Perisher), you don’t drive into the park so carrying chains is not compulsory BUT if there can be ice on the road between Habitat Chalet and the Tube, in which case you may need chains.
The best resource for road conditions is http://livetraffic.rta.nsw.gov.au/desktop.html and you can log on any time and it will advise if chains are likely to be necessary.
Chains can be hired at many locations along the way to Habitat Chalet regardless of which way you come.