Sometime Russia appears destined never to change from the bureaucratic chaos of the Soviet times.
Towards the end of 2006, we learned this:
The Sakhalin Unit of the Federal Security Service (FSB) announced that new border zone regulations will be implemented in Sakhalin as of January 1.
According to the new rules, all visitors and residents of the Sakhalin Region will be required to carry identification documents with them at all times. Russian citizens with registration in the Sakhalin Region are allowed to travel freely across the island. Foreigners and Russian citizens without registration in Sakhalin will have to apply for permits to enter areas outside Yuzhno-Sakhalinsk.
Five months later, we learn this:
On May 25 the Sakhalin Frontier Guard Acting Head Mikhail Shevchenko held a press-conference to tell about changes in frontier area on Sakhalin.
There is no frontier zone on Sakhalin: it means that any Russian or foreign citizen (having corresponding documents) is allowed to move here without hindrance.
Russians like to change the rules willy-nilly. It keeps anybody from knowing what the rules actually are on any given day.