Approval of U.S. operators and aircraft to operate under Instrument Flight Rules (IFR) in European airspace designated for Basic Area Navigation (B-RNAV) and Precision Area Navigation (P-RNAV)
Mode of access: Internet at the FAA web site. Address as of 1/14/09: http://www.airweb.faa.gov/Regulatory%5Fand%5FGuidance%5FLibrary/rgAdvisoryCircular.nsf/0/24479c4294d3783e86256f9d00584012/$FILE/AC%2090-96A.pdf; current access available via PURL.