47. Statutory construction.
 
    a. "Courts must construe statutes and ordinances to give meaning to all of their parts and language. State ex rel. List v. AAA Auto Leasing, 93 Nev. 483, 568 P.2d 1230 (1977), Nevada State Personnel Division v. Hashins, 90 Nev. 425, 529 P.2d 795 (1974). The court should read each sentence, phrase, and word to render it meaningful within the context of the purpose of the legislation. See State Gen. Obligation Bond v. Koontz, 84 Nev. 130, 437 P.2d 72 (1968). A reading of legislation which would render any part thereof redundant or meaningless, where that part may be given a separate substantive interpretation, should be avoided."
Bd. of County Comm'rs v. CMC of Nevada, 99 Nev. 739, 744, 670 P.2d 102 (1983). No. 29.
 
    b. "When a former statute is amended, or a doubtful interpretation is rendered certain by persuasive evidence of the purpose and intent of the legislature in passing the former (unamended) statute. See Woofter v. O'Donnell, 91 Nev. 756, 542 P.2d 1396 (1975); Sheriff v. Smith, 91 Nev. 729, 542 P.2d 440 (1975)." Id. at 745.