Bus Regulation 10. Mr. Dixon asked the Secretary of State for Transport what evidence he has of the effect of bus deregulation on the purchase of second-hand buses by bus operators; and what assessment he has made of the implications of this for safety. Mr. David Mitchell Several operators have disposed of considerable numbers of second-hand vehicles but there is no evidence of the extent to which these have been brought back into service by other operators. The number of new minibuses brought into service is far more significant. Safety standards will be maintained as all public service vehicles are subject to an annual test and spot checks. 45. Mr. Wallace asked the Secretary of State for Transport when he expects the research into bus deregulation being conducted by his Department in conjunction with the Scottish and Welsh Offices to be published. 49. Mr. Alex Carlile asked the Secretary of State for Transport when he expects to publish the research into bus deregulation being conducted by his Department in conjunction with the Scottish and Welsh offices. Mr. David Mitchell A review of the opening stages of deregulation, by the Transport and Road Research Laboratory, was published in January of this year. Copies are available in the Library of the House. I expect first reports of the detailed area studies to be published in the summer. Other reports on various aspects of the research programme will be published from time to time. Mr. Holt asked the Secretary of State for Transport how many individuals have written to him following deregulation in Cleveland; and if he will make a statement. Mr. David Mitchell I have received representations from five individuals. The overall position in the county is that the level of services has been broadly maintained and the council has achieved very substantial savings in subsidies.