Any potential natural area recommended for inclusion in the State Register shall possess one or more of the following characteristics:

1. 1. Rare, threatened, or endangered plant or animal species habitat;
2. 2. Outstanding plant community type which is representative of the natural diversity of this state;
3. 3. Outstanding geological element which is representative of the geological history or processes of this state;
4. 4. Outstanding aquatic elements which are representative of the aquatic diversity of this state; or
5. 5. Unusual natural features, such as vegetation types, virgin stands, or other unique biological or ecological phenomena.

Laws 1984, HB 1845, c. 48, § 4, eff. November 1, 1984; Renumbered from 74 O.S. § 1843 by Laws 2002, SB 1314, c. 199, § 5, emerg. eff. May 6, 2002.