As used in this chapter, the term, actions, does not include: (1) Enforcement proceedings or the exercise of prosecutorial discretion in determining whether or not to institute such proceedings; (2) Actions of a ministerial nature, involving no exercise of discretion; (3) Emergency actions responding to an immediate threat to public health or safety; (4) Proposals for legislation; or (5) Actions of an environmentally protective regulatory nature. Source: SL 1974, ch 245 , § 1 (3); SDCL Supp, § 11-1A-3; SL 2011, ch 165 , § 133.