IS-BAO Overview http://www.ibac.org/is-bao/isbao_overview.htm
IS-BAO Benefits http://www.ibac.org/is-bao/isbao_benefits.htm
AC 120-92 http://web.nbaa.org/public/ops/ac/AC120-92.pdf
AC 120-71A http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgAdvisoryCircular.nsf/0/b173ba8a295764f086256cde006a44ad/$FILE/AC120-71A.pdf
