For some time now Waikato District Council has been relying in good part to receive community feedback on proposed policies and bylaws via its website Shape Waikato. You can sign up to receive notification of items as they are posted.
Each issue has a page setting out the proposals and how to provide feedback at each stage of the consultation process. Currently there are four requesting response now:

Details for each consultation can be found here:
Freedom Camping Early Engagement
Ngaruawaahia, Hopuhopu and Taupiri Structure Plan and Town Centre Plan
Proposed Trade Waste and Wastewater Bylaw
There are also details of matters on the website that are under process but no longer open for feedback.