Neither the Bagley-Keene Act nor Brown Act defines the term "regular meeting." The Brown Act requires that each legislative body of a local agency, except for advisory or standing committees, provide by ordinance, resolution, bylaws or other rule the time and place for holding "regular meetings." Cal. Gov't Code § 54954(a). A meeting of an advisory or standing committee, where an agenda is posted at least 72 hours in advance of the meeting, is considered a regular meeting of the legislative body. Cal. Gov't Code § 54954(a).