2. The following provisions of Part 2 (Housing) come into force on the commencement date—
(a)section 12 (anti-social behaviour: landlords' policies and procedures);
(b)section 14 and schedule 1 (security of tenure: anti-social behaviour) (demoted tenancies) to the extent that they are not already in force;
(c)section 15 (demoted assured shorthold tenancies).