changed procedures for rent registration. The rent registration review period was reduced from three to two years. The periods of phasing of increases were consequently quickened. Following the referral of a decision to a Rent Assessment Committee the two-year period was made to run from the date of their decision rather than the original effective date. Registered rents were made effective from the date of registration rather than the date of the application. In those cases when the registration was made before the expiration of the two-year period, the registration took effect from the day following the expiry of the two-year period. The Act made changes to the procedures for the need for Rent Officers to call consultations in certain circumstances. The Act also made changes to the requirements necessary before a registration could be cancelled. The original registration had to be at least two years old. The landlord alone could make an application if the premises were no longer let on a regulated tenancy. A new mandatory ground for possession (Case 20) was introduced for lettings by servicemen. Changes were made to the mandatory grounds for possession for lettings by former owner occupiers and those who own homes intended for retirement, which covered circumstances that could not have been foreseen at the time of the letting. Rent Tribunals were abolished. Their functions, except for the power to grant security of tenure, were transferred to rent assessment committees. A more limited discretion to award security of tenure (a maximum of three months) was given to the county court, as part of the possession order proceedings. Any remaining controlled tenancies were converted to regulated tenancies. New protected shorthold tenancies were created that protected during the contractual term of a short fixed-term letting. A rent had to be registered at the time the tenancy was granted or a certificate of fair rent obtained before then and a registration made within twenty-eight days of the commencement of the tenancy. This requirement was removed for all registration areas outside Greater London by the Protected Shorthold Tenancies (Rent Registration) Order 1981 and for registration areas in Greater London by a similar order in 1987. Assured tenancies were created that gave certain approved bodies the right to create assured tenancies of new dwellings outside Rent Act protection at market rents. These tenancies were subject to the provisions of Part II of the Landlord and Tenant Act