Provides for the appointment of three alternates on rent guideline boards; one alternate shall represent tenants, one shall represent owners of property and one shall be a public representative; alternates shall be permitted to participate in all proceedings of the board as non-voting members; an alternate shall only participate as a voting member of the board and be paid when a member, representing the same interest as the alternate, is unable to fulfill his or her duties on the board; applies to the city of New York, counties outside the city, towns and villages.