Time to renew for 2017 if you haven't already renewed. Check if you are up to date by making sure that you are logged in and clicking "Renew membership" on the left-hand block of the home page. It shows your paid-to date in the green band at the top.
Renewing online is easy. Click on the "Renew membership" link in the left-hand block of the home page, fill in the boxes, check your details and follow the payment instructions. There is a step-by-step guide here: http://www.asnsw.com/node/678