Please follow http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgPolicy.nsf/0/6A24902AE5F1AEAC86257EC1005B2FBC?OpenDocument&Highlight=ps-ace-23-08.

Please follow http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgPolicy.nsf/0/6A24902AE5F1AEAC86257EC1005B2FBC?OpenDocument&Highlight=ps-ace-23-08.