Explanation of Changes

EXPLANATION OF CHANGES

Direct questions through appropriate facility/service center office staff
to the Office of Primary Interest (OPI)

1. 2-5-3. AIRCRAFT INDENTIFICATION

   This change adds instructions for communicating with civil foreign aircraft whose registry begins with a number rather than a letter.

2. Editorial Changes

   Editorial changes includes adding the 23 NM Lateral and 20 NM Longitudinal separation standards to TBL A-16 in Appendix A.

3. Entire Publication

   Additional editorial/format changes were made where necessary. Revision bars were not used because of the insignificant nature of these changes.