• Canberra is the first city in Australia to legalise cannabis for personal use 
• The bill was passed in the ACT Parliament on Wednesday afternoon 
• Canberrans will be allowed to possess 50g of cannabis and grow two plants

Canberra has become the first city in Australia to legalise cannabis for personal use.

The bill was passed in the ACT Parliament on Wednesday afternoon after getting support from labor and the Greens.

Canberrans over 18 will be allowed to possess 50g of cannabis and grow two plants. 

A household can only have four plants total and hydroponic growing will remain illegal, The ABC reported.

The law change will not come into effect until January 31. 

ACT Health Minister Rachel Stephen-Smith must also sign off on the bill.

The private member's bill was introduced by Labor backbencher Michael Pettersson.

While legalising the drug might clash with federal drug laws, Mr Pettersson on Tuesday said he was 'very confident' there wouldn't be any problems.