EDGAR data as provided on the web site and through anonymous FTP may be freely used, provided that you acknowledge (a) the estimated uncertainties as summarised in the uncertainty tables in the Uncertainty section of the documentation, (b) the caveats as summarised in the Caveat section of the documentation, (c) the disclaimer provided, and (d) that you include in your publication an acknowledgement to the EDGAR data. For the latter we recommend the following references:
Source: EDGAR 3.2 by RIVM/TNO (3.3 for F-gases HFCs, PFCs and SF6) (<reference as specified below>).

General: 
Olivier, J.G.J. and J.J.M. Berdowski (2001) Global emissions sources and sinks. In: Berdowski, J., Guicherit, R. and B.J. Heij (eds.) "The Climate System", pp. 33-78. A.A. Balkema Publishers/Swets & Zeitlinger Publishers, Lisse, The Netherlands. ISBN 90 5809 255 0.

Details on validation and use: 
Olivier, J.G.J., J.J.M. Berdowski, J.A.H.W. Peters, J. Bakker, A.J.H. Visschedijk en J.-P.J. Bloos (2001) Applications of EDGAR. Including a description of EDGAR 3.0: reference database with trend data for 1970-1995. RIVM, Bilthoven. RIVM report no. 773301 001/ NOP report no. 410200 051.

Data sources, methodology and country data for CO2, CH4, N2O and F-gases:
Olivier, J.G.J. (2002) Part III: Greenhouse gas emissions: 1. Shares and trends in greenhouse gas emissions; 2. Sources and Methods; Greenhouse gas emissions for 1990 and 1995. In: "CO2 emissions from fuel combustion 1971-2000", 2002 Edition, pp. III.1-III.31. International Energy Agency (IEA), Paris. ISBN 92-64-09794-5.

N.B. For EDGAR V2.0 data the recommended citation is: 
Source: EDGAR V2.0 by RIVM/TNO (Olivier, J.G.J., Bouwman, A.F., Berdowski, J.J.M., Veldt, C., Bloos, J.P.J., Visschedijk, A.J.H., Van der Maas, C.W.M. and P.Y.J. Zandveld, 1999, Sectoral emission inventories of greenhouse gases for 1990 on a per country basis as well as on 1o x 1o. Environmental Science & Policy, 2, 241-264).

Finally, we appreciate that you use EDGAR data as reference data set for your scientific, policy or other applications. As a small service in return to our efforts to compile, document, release and update these datasets, we greatly appreciate it, if you send us - by snail mail, fax or email - a copy of your publication in which you refer to EDGAR data. This is also appreciated for older publications, which refer to EDGAR 2 data. 
Our mailing address is: mailto:edgar-info@mnp.nl

RIVM Office for Environmental Assessment
EDGAR team
c/o Jeroen Peters
P.O. Box 1
NL-3720 BA  Bilthoven
The Netherlands