IPC-2221 Complete Document History
Generic Standard on Printed Board Design

Complete Current Edition:
   REVISION B - Generic Standard on Printed Board Design - Dec. 1, 2012

Obsolete Revision Information:
   REVISION A - Generic Standard on Printed Board Design - May 1, 2003
   DOD ADOPTION - FYI ONLY: DOD ADOPTED - Sept. 1, 1999
   BASE - INCLUDES AMENDMENT 1 - Feb. 1, 1998