Limits of changes to bill in succeeding session

30.52A bill is deemed to be the same bill as the bill sent up to the House of Lords in the preceding session if, when it is sent up to the House of Lords, it is identical with the former bill or contains only such alterations as are certified by the Speaker to be necessary owing to the time which has elapsed since the date of the former bill,1 or to represent any amendments which were made by the House of Lords in the former bill in the preceding session, whether or not the Commons had agreed to them in the first session.2 Commons amendments made in lieu of Lords amendments and Commons amendments made to Lords amendments, if agreed to by the Lords in the preceding session, have been held to represent amendments made by the Lords for the purposes of the Parliament Acts and certified accordingly.3 If any of the amendments made by the Lords in the second session are agreed to by the Commons they are inserted in the bill as presented for the Royal Assent and are certified by the Speaker as having been so made and agreed to.4


  1. 1. CJ (1913) 235; ibid (1914) 226, 244, 264; ibid (1947–48) 410; ibid (1990–91) 306; ibid (1999–2000) 188; ibid (2003–04) 536.
  2. 2. CJ (1913) 244; ibid (1975–76) 114, 118; ibid (1976–77) 34. See Section 2 of the Parliament Act 1911, guidance by the Office of the Parliamentary Counsel, 2017, paras 2.42 and 2.43.
  3. 3. CJ (1976–77) 34; HC Deb (1976–77) 922, c 453.
  4. 4. The citation clause of the European Parliamentary Elections Bill (1998–99) was amended editorially since the year end fell between the rejection of the Bill by the Lords and its presentation for Royal Assent.