R.I. Gen. Laws § 40.1-5-43: Applicability to acts done, rights accruing, orders, or admissions prior to January 1, 1975.

Nothing contained in this chapter shall affect or impair the validity of any act done or right accruing, accrued, or acquired, or any order, judgment, or status established prior to January 1, 1975. As to any person admitted or certified pursuant to the provisions of the law prior to January 1, 1975, the prior law shall continue to govern until six (6) months thereafter, whereupon the provisions of this chapter shall apply in all respects.