If you are a new editor, start out right by getting advice from your local experts. This means starting with the area manager(s) for your editing areas. Increasingly, this information is found in the mapping resources page for your state or territory. You can also search the wiki for the name of your region, province, or state.
Area managers are also listed right in the Waze Map Editor in the "Area Manager" layer . If you have the UR Overview+ extension you can see the list of area managers by selecting the URO+ tab. If you are using the WME Toolbox, you can find the list of area managers by selecting any segment or place and using the "Get the list of Area Managers" link in the left-hand information pane.
If you cannot find the area manager information for your editing area, ask for help in Chat.