Not on his own, unless he also happens to serve as chair of a particular committee. "When a committee has been appointed, its chairman (or first-named member temporarily acting—see p. 176) should call it together. If its chairman fails to call a meeting, the committee must meet on the call of any two of its members, unless (for very large committees) the assembly's rules prescribe, or empower the assembly or the committee to require, a larger number." (RONR, 11th ed., pg. 499) "When a