type of misconduct which Viking was found to have committed. We granted review of the matter because construction of the statute presents an issue of statewide significance. For the reasons set forth below, we conclude the interpretation announced by the Court of Appeal was incorrect.
Our analysis starts from the fundamental premise that the objective of statutory interpretation is to ascertain and effectuate legislative intent. (People v. Woodhead (1987) 43 Cal.3d 1002 [239 Cal.Rptr. 656, 741 P.2d 154]; People v. Overstreet (1986) 42 Cal.3d 891 [231 Cal.Rptr. 213, 726 P.2d 1288].) In determining intent, we look first to the words themselves. (Woodhead, supra, 43 Cal.3d at p. 1007; Overstreet, supra, 42 Cal.3d at p. 895.) If the statutory language is clear and unambiguous, there is no need for construction. (Woodhead, supra, 43 Cal.3d at pp. 1007-1008; Overstreet, supra, 42 Cal.3d at p. 895.)
Section 7107 proscribes a contractor from abandoning without legal excuse a “construction project or operation.” Similarly, section 7113 prohibits a contractor from materially failing to complete the “construction project or operation” for the price stated in the contract. Viking contends that once it completed physical installation of the pool on August 25, 1977, it could no longer be disciplined under section 7107 for abandonment of, or under section 7113 for material failure to complete, the “construction project or operation.” The Attorney General, on behalf of the Contractors’ State License Board, argues that the scope of a “construction project or operation” is determined by the contractual agreement between the parties, and that the breach of a contractual warranty is an abandonment of, and material failure to complete, the “construction project or operation.”
The touchstone phrase in both sections—-“construction project or operation”^—is susceptible of only one reasonable interpretation in light of the clear, prophylactic purpose underlying the entire statutory system of which it is a part. (See People v. Shirokow (1980) 26 Cal.3d 301, 306-307 [162 Cal.Rptr. 30, 605 P.2d 859]; People ex rel. Younger v. Superior Court (1976) 16 Cal.3d 30, 40 [127 Cal.Rptr. 122, 544 P.2d 1322], and cases there cited.) Contrary to the narrow view urged by Viking, the statutory scheme compels the conclusion that the phrase “construction project or operation” in sections 7107 and 7113 refers to the construction project or operation as determined by the contract agreed to by the parties.
This court has stated that the purpose of the Contractors’ State License Law is to protect the public against the perils of contracting with dishonest or incompetent contractors. (Asdourian v. Araj (1985) 38 Cal.3d 276, 289 [211 Cal.Rptr. 703, 696 P.2d 95]; see also Rushing v. Powell (1976) 61 Cal.App.3d 597 [130 Cal.Rptr. 110]; Conderback, Inc. v. Standard Oil