The sale of alcohol was restricted to certain zones and to certain hours.

Geographically selective schools only allow students from a certain zone to enter.

And there are certain specified zones of the city that we may not enter.

It blows only in a certain zone, like a draft down a chimney.

New housing developments in certain zones would be required to rent or sell 20 percent of their units below market rate.

Certain spells are also known to be restricted to certain zones.

Public spaces are design to certain secured zones only.

However, in certain "contextual" zones where building heights are limited, the program is mandatory.

The view in darkages is isometric except when leaving certain zones.

These tend to cause offshore movements of surface water and either a return movement along the bottom or in certain restricted zones.