An authority constitutes a public body corporate and politic, exercising public and essential governmental functions, and having all the powers necessary to carry out and effectuate the purposes and provisions of this chapter, but not the power to levy and collect taxes or special assessments, including the following powers in addition to others granted: [1987, c. 737, Pt. A, §2 (NEW); 1987, c. 737, Pt. C, §106 (NEW); 1989, c. 6, (AMD); 1989, c. 9, §2 (AMD); 1989, c. 104, Pt. C, §§8, 10 (AMD).]