Northern Ireland Secretary Theresa Villiers has been cleared of charges that she broke ministerial disclosure rules by failing to register a meeting with a lobbyist.
During her time as transport minister, Ms Villiers in 2011 met a lobbyist pitching for planning permission for a controversial rail freight yard on a 400-acre site in Hertfordshire.
The freight yard plan has twice been rejected by the department of communities and local government.
Prompted by a complaint from a fellow Conservative MP three months ago, cabinet secretary Jeremy Heywood investigated her failure to list the meeting in an official register.
Mr Heywood cleared her last night, but only because disclosure rules were not tightened up until after her meeting occurred.