Public assistance shall be awarded to, or on behalf of, any individual who is a resident of this state and is otherwise eligible therefor under one of the categories established pursuant to this article, as determined in accordance with the regulations of the board; provided, however, that residence in this state in excess of one year may not be required with respect to any individual under any category; and provided, further, that with respect to "medical assistance" no residence requirement which excludes any individual who resides in this state may be imposed.