The study was set up in 1992 to make a comparative evaluation of possible heliport sites to serve central London. The report does not make recommendations about the siting of any new development, nor was it asked to do so.
Any proposals to build a heliport are for the private sector and would be subject to normal planning procedures.
The department is not aware of any planning applications at the six sites which were identified by the study as being operationally suitable.
Welcoming the publication of the report Lord Goschen, the minister for aviation, said:
'This study has identified a number of technical issues which would need to be addressed at any future planning inquiry and has developed an effective method for measuring the effect of helicopter noise.'