MIL-HDBK-87234 (NOTICE 1), DEPARTMENT OF DEFENSE HANDBOOK: PERSONAL PROTECTIVE EQUIPMENT, AIRCREW (29 SEP 1999) [S/S BY JSSG-2010]., MIL-HDBK-87234, dated 14 February 1997, is hereby canceled. Future acquisitions should refer to applicable portions of JSSG-2010, Crew Systems and JSSG-2010-9, Crew Systems, Personal Protective Equipment Handbook.