Parliamentary

a.
  1. Of or pertaining to Parliament; as, parliamentary authority.
  2. Enacted or done by Parliament; as, a parliamentary act.
  3. According to the rules and usages of Parliament or of deliberative bodies; as, a parliamentary motion; parliamentary order; parliamentary procedure.
  4. Parliamentary agent ,
    a person, usually a solicitor, professionally employed by private parties to explain and recommend claims, bills, etc., under consideration of Parliament.
    Parliamentary train ,
    one of the trains which, by act of Parliament, railway companies are required to run for the conveyance of third-class passengers at a reduced rate.