On 15 September 2011 the Act on Termination and Certain Arrangements of Rental Relations to Flats and Apartments comes into effect, governing the conditions of rental deregulation with respect to some rental relations. The tenants of flats or apartments with a regulated amount of rent are obliged to free such flats or apartments before the end of year 2016. The owners will then be authorised to lease such flats or apartments for market prices or make the use of these according to their own will. The renters may, starting from the date when this Act becomes effective, increase unilaterally the monthly rent by 20%, once per year. The tenants will have the right of asking the municipality or community authorities for allocation of a substitute flat or apartment with regulated amount of rent, and these authorities will be obliged to provide these legitimate claimants with a substitute flat or apartment before the end of 2016. In case such substitute housing is not provided, the claimant will have the right to receive the amount equal to the difference between the monthly market and regulated rent until such substitute flat or apartment is available to tenant. The renters will have the right to give notice to tenants till 31 March 2012 without stating the reason and with a notice period of one year.