Rent control is the rent regulation program which generally applies to residential buildings constructed before February 1947. For an apartment to be under rent control, the tenant must generally have been living there continuously since before July 1, 1971 or for less time as a successor to a rent controlled tenant. When a rent controlled apartment becomes vacant, it either becomes rent stabilized or is removed from regulation. Rent control limits the rent an owner may charge for an apartment and restricts the right of an owner to evict tenants. It also obligates the owner to provide essential services and equipment.