An Act amending Title 1 (General Provisions) of the Pennsylvania Consolidated Statutes, in rules of construction, further providing for legislative intent controls.

SB 557 amends Pennsylvania's statutory rules of construction to limit how state agencies interpret vague laws. It directly affects Commonwealth departments, agencies, boards, and commissions by prohibiting them from using ambiguous language in statutes to expand their own authority or justify expansive interpretations. The bill explicitly states that courts cannot defer to agency interpretations of unclear laws or allow agencies to claim implicit rulemaking power from ambiguity, applying this rule to all judicial reviews of agency actions under Pennsylvania law.