(a) This chapter applies to any interest created after July 18, 1996, which complies with this chapter, whether or not such interest is designated as a conservation easement, covenant, equitable servitude, restriction, easement or otherwise.
(b) This chapter applies to any interest created before July 18, 1996, if it would have been enforceable had it been created after July 18, 1996, unless such retroactive application contravenes the constitution or laws of this State or the United States.
(c) This chapter does not invalidate any interest, whether designated as a conservation or preservation easement or as a covenant, equitable servitude, restriction, easement or otherwise that is enforceable under other law of this State.