What is the test for a statutory construction officer to interpret the meaning of a statute?

"Where, as here, the issue presented is one of statutory construction, our fundamental task is 'to ascertain the intent of the lawmakers so as to effectuate the purpose of the statute.' [Citations.] We begin by examining the statutory language because it generally is the most reliable indicator of legislative intent. [Citation.] We give the language its usual and ordinary meaning, and 'if there is no ambiguity, then we presume the lawmakers meant what they said, and the plain meaning of the language governs.' [Citation.] If, however, the statutory language is ambiguous, 'we may resort to extrinsic sources, including the ostensible objects to be achieved and the legislative history.' [Citation.] Ultimately we choose the construction that comports most closely with the apparent intent of the lawmakers, with a view to promoting rather than defeating the general purpose of the statute. [Citations.] Any interpretation that would lead to absurd consequences is to be avoided. [Citation.]" (Allen v. Sully-Miller Contracting Co. (2002) 28 Cal.4th 222, 227.)