Stevenson became chairman of
Halifax plc in 1999 and when they merged with
Bank of Scotland in May 2001 he became chairman of the merged group,
HBOS plc. After the collapse of Lehman Brothers in September 2008 and the subsequent forced rescue-merger between HBOS and Lloyds TSB, Stevenson and
Andy Hornby resigned, waiving their rights to any "pay-offs". At a meeting of the
Treasury Select Committee of the
House of Commons on 10 February 2009, Stevenson apologised for the near-collapse of HBOS. In April 2013, the Parliamentary Commission on Banking Standards assigned the primary responsibility for the collapse of
HBOS to Stevenson along with former chief executives
Sir James Crosby and
Andy Hornby. The commission urged the regulator to ban all three men from the industry. Their report said: "Lord Stevenson has shown himself incapable of facing the realities of what placed the bank in jeopardy from that time until now". And: "The corporate governance of HBOS at board level serves as a model for the future, but not in the way in which Lord Stevenson and other board members appear to see it. It represents a model of self-delusion, of the triumph of process over purpose". (Parliament's Banking Standards Commission report, issued in April 2013) ==Arms==