The template for state and federal statutes is a follows:
Reference List: Name of Act, Title Source § Section # (Year). URL
Parenthetical citation: (Name of Acts, Year)
Narrative citation: Name of Act (Year)
A common example:
Americans With Disabilities Act of 1990, 42 U.S.C. § 12101 et seq. (1990).
Another example
Reference List: Florida Mental Health Act, FLA. Stat § 394 (1971 & rev. 2009). http://www.leg.state.fl.us/Statutes/index.cfm? App_mode=Display_Statute&URL=0300-0399/0394/0394PARTIContentsIndex.html
Parenthetical citation: (Florida Mental Health act, 1971/2009)
Narrative citation: Florida Mental Health Act (1971/2009)
Source: APA Handbook-see page 361-363