Where to update blueslip??

My cars been engineered for months now, but i havent updated the rego yet (i still have rego till August).

Which places do blueslip updates? (for already registered cars, but just engineered).

Preferably wollongong area, and somewhere not too strict. It is all legal (as far as i know) but you can always pick something if you really wanted too, i just dont want the hassle.

Thanks
Mike