(a) This chapter applies to all agency proceedings commenced on or after July 1, 1989. Each agency proceeding commenced before July 1, 1989, is governed by the law in effect when the proceeding was commenced.
(b) Notwithstanding any other provision of the general statutes to the contrary in existence on July 1, 1989, this chapter shall apply to all agencies and agency proceedings not expressly exempted in this chapter.